/*
Product Name: dhtmlxSuite 
Version: 4.0.3 
Edition: Professional 
License: content of this file is covered by DHTMLX Commercial or Enterprise license. Usage without proper license is prohibited. To obtain it contact sales@dhtmlx.com
Copyright UAB Dinamenta http://www.dhtmlx.com
*/

function dhtmlXWindows(params) {
	
	// console.log("context menu for top icon?");
	// console.log("resize with attached iframe - cover or cross events?");
	// console.log("resize allow while progress is on?");
	// console.log("deny resize for maxed window, but allow for partially maxed");
	// console.log("add cancelBubble for mousedown/click for modal cover?");
	
	var that = this;
	
	var conf = {};
	if (typeof(params) != "undefined") {
		for (var a in params) conf[a] = params[a];
	}
	params = null;
	
	
	this.conf = {
		skin: window.dhx4.skin||(typeof(dhtmlx)!="undefined"?dhtmlx.skin:null)||window.dhx4.skinDetect("dhxwins")||"dhx_skyblue",
		// viewport conf
		vp_pos_ofs: 20, // windows-veieport overlay (left, right, bottom) and 0 for top
		vp_custom: false,
		// window dinmension offset
		ofs_w: null,
		ofs_h: null,
		// button down/up state
		button_last: null,
		// hdr dblclick
		dblclick_tm: 300,
		dblclick_last: null,
		dblclick_id: null,
		dblclick_mode: "minmax", // "park", function(){}, "function_name"
		dblclick_active: false,
		dblclick_ev: (navigator.userAgent.indexOf("MSIE 6.0")>=0||navigator.userAgent.indexOf("MSIE 7.0")>=0||navigator.userAgent.indexOf("MSIE 8.0")>=0),
		// fr cover render
		fr_cover: (navigator.userAgent.indexOf("MSIE 6.0")>=0) // iframe+select issue, ie6 only
	};
	
	var transData = window.dhx4.transDetect();
	this.conf.tr = {
		prop: transData.transProp, // false if not available
		ev: transData.transEv,
		height_open: "height 0.2s cubic-bezier(0.25,0.1,0.25,1)", // cell open/close by click
		height_close: "height 0.18s cubic-bezier(0.25,0.1,0.25,1)", // cell open/close by click
		op_open: "opacity 0.16s ease-in", // cell_cont on open
		op_close: "opacity 0.2s ease-out", // cell_cont on close
		op_v_open: "1", // opacity for opened cell
		op_v_close: "0.4" // opacity for closed cell
	};
	
	if (!conf.viewport) {
		this.attachViewportTo(document.body);
	} else {
		if (conf.viewport.object != null) {
			this.attachViewportTo(conf.viewport.object);
		} else if (conf.viewport.left != null && conf.viewport.top != null && conf.viewport.width != null && conf.viewport.height != null) {
			this.setViewport(conf.viewport.left, conf.viewport.top, conf.viewport.width, conf.viewport.height, conf.viewport.parent);
		} else {
			this.attachViewportTo(document.body);
		}
	}
	
	this.w = {};
	
	this.createWindow = function(id, x, y, width, height) {
		
		var r = {};
		if (arguments.length == 1 && typeof(id) == "object") {
			r = id;
		} else {
			r.id = id;
			r.left = x;
			r.top = y;
			r.width = width;
			r.height = height;
			if (typeof(r.id) == "undefined" || r.id == null) r.id = window.dhx4.newId();
			while (this.w[r.id] != null) r.id = window.dhx4.newId();
		}
		
		if (r.left == null) r.left = 0;
		if (r.top == null) r.top = 0;
		
		r.move = (r.move != null && window.dhx4.s2b(r.move) == false ? false : (r.deny_move != null && window.dhx4.s2b(r.deny_move) == true ? false : true));
		r.park = (r.park != null && window.dhx4.s2b(r.park) == false ? false : (r.deny_park != null && window.dhx4.s2b(r.deny_park) == true ? false : true));
		r.resize = (r.resize != null && window.dhx4.s2b(r.resize) == false ? false : (r.deny_resize != null && window.dhx4.s2b(r.deny_resize) == true ? false : true));
		r.keep_in_viewport = (r.keep_in_viewport != null && window.dhx4.s2b(r.keep_in_viewport));
		r.modal = (r.modal != null && window.dhx4.s2b(r.modal));
		r.center = (r.center != null && window.dhx4.s2b(r.center));
		r.text = (r.text != null ? r.text:(r.caption!=null?r.caption:"dhtmlxWindow"));
		r.header = (!(r.header != null && window.dhx4.s2b(r.header) == false));
		
		var t = document.createElement("DIV");
		t.className = "dhxwin_active";
		t.style.viosibility = "hidden";
		this.vp.appendChild(t);
		
		t._isWindow = true;
		t._idd = r.id;
		
		var h = document.createElement("DIV");
		h.className = "dhxwin_hdr";
		h.style.zIndex = 0;
		h.innerHTML = "<div class='dhxwin_icon'></div>"+
				"<div class='dhxwin_text'><div class='dhxwin_text_inside'>"+r.text+"</div></div>"+
				"<div class='dhxwin_btns'></div>";
		t.appendChild(h);
		
		h.onselectstart = function(e) {
			e = e||event;
			if (e.preventDefault) e.preventDefault(); else e.returnValue = false;
			return false;
		}
		
		h.oncontextmenu = function(e) {
			e = e||event;
			e.cancelBubble = true;
			return false;
		}
		
		h._isWinHdr = true;
		h.firstChild._isWinIcon = true;
		
		var k = document.createElement("DIV");
		k.className = "dhxwin_brd";
		t.appendChild(k);
		
		var fr_cover = document.createElement("DIV");
		fr_cover.className = "dhxwin_fr_cover";
		fr_cover.innerHTML = "<iframe class='dhxwin_fr_cover_inner' frameborder='0' border='0'></iframe><div class='dhxwin_fr_cover_inner'></div>";
		t.appendChild(fr_cover);
		
		this.w[r.id] = {
			win: t,
			hdr: h,
			brd: k,
			fr_cover: fr_cover,
			b: {},
			conf: {
				z_id: window.dhx4.newId(),
				actv: false,
				modal: false,
				maxed: false,
				parked: false,
				sticked: false,
				visible: true,
				header: true,
				text: r.text,
				keep_in_vp: r.keep_in_viewport,
				allow_move: r.move,
				allow_park: r.park,
				allow_resize: r.resize,
				max_w: null,
				max_h: null,
				min_w: 80,
				min_h: 80
			}
		};
		
		// buttons, id=>visible
		var btns = {
			help: {title: "Help", visible: false},
			stick: {title: "Stick", visible: false},
			park: {title: "Park", visible: true},
			minmax: {title: "Min/Max", visible: true},
			close: {title: "Close", visible: true}
		};
		for (var a in btns) {
			var b = new dhtmlXWindowsButton(this, r.id, a, btns[a].title, false);
			if (btns[a].visible == false) b.hide();
			h.lastChild.appendChild(b.button);
			this.w[r.id].b[a] = b;
			b = null;
		}
		this._winAdjustTitle(r.id);
		
		this.w[r.id].win.style.zIndex = window.dhx4.zim.reserve(this.w[r.id].conf.z_id);
		
		var cell = new dhtmlXWindowsCell(r.id, this);
		this.w[r.id].win.insertBefore(cell.cell, fr_cover);
		this.w[r.id].cell = cell;
		
		if (typeof(window.addEventListener) == "function") {
			this.w[r.id].win.addEventListener("mousedown", this._winOnMouseDown, false);
			this.w[r.id].win.addEventListener("mouseup", this._winOnMouseDown, false);
			if (this.conf.dblclick_ev) this.w[r.id].win.addEventListener("dblclick", this._winOnMouseDown, false);
		} else {
			this.w[r.id].win.attachEvent("onmousedown", this._winOnMouseDown);
			this.w[r.id].win.attachEvent("onmouseup", this._winOnMouseDown);
			if (this.conf.dblclick_ev) this.w[r.id].win.attachEvent("ondblclick", this._winOnMouseDown);
		}
		
		// fr for IE6
		this._winInitFRM(r.id);
		
		this._winSetPosition(r.id, r.left, r.top);
		this._winSetSize(r.id, r.width, r.height);
		this._winMakeActive(r.id);
		
		if (r.center == true) this.w[r.id].cell.center();
		if (r.modal == true) this.w[r.id].cell.setModal(true);
		if (r.header == false) this.w[r.id].cell.hideHeader();
		
		f = t = h = k = fr_cover = cell = null;
		
		return this.w[r.id].cell;
	}
	
	this._winOnMouseDown = function(e) {
		
		e = e||event;
		
		var t = e.target||e.srcElement;
		var data = {press_type: e.type};
		
		while (t != null && t._isWindow != true) {
			if (typeof(t.className) != "undefined" && data.mode == null) {
				if (typeof(t._buttonName) != "undefined") {
					data.mode = "button";
					data.button_name = t._buttonName;
				} else if (t._isWinHdr == true) {
					data.mode = "hdr";
				} else if (t._isWinIcon == true) {
					data.mode = "icon";
				}
			}
			t = t.parentNode;
		}
		if (data.mode == null) data.mode = "win";
		
		data.id = (t != null && t._isWindow == true ? t._idd:null);
		
		t = null;
		
		if (data.id != null) that.callEvent("_winMouseDown",[e,data]);
	}
	
	this._winOnParkTrans = function(e) {
		if (e.stopPropagation) e.stopPropagation();
		var w = that.w[this._idd];
		if (e.propertyName == "opacity") {
			that._winCellClearOpacity(this._idd);
		}
		if (e.propertyName == "height" && w.conf.tr_mode == "park") {
			if (w.conf.tr_mode == "park") {
				w.win.style[that.conf.tr.prop] = "";
				if (!w.conf.parked) {
					that._winAdjustCell(this._idd);
					that._callMainEvent("onParkDown", this._idd);
					if (w.conf.keep_in_vp) that._winAdjustPosition(this._idd, w.conf.x, w.conf.y);
				} else {
					w.hdr.style.zIndex = 3;
					that._callMainEvent("onParkUp", this._idd);
				}
			}
			
		}
		w = null;
	}
	
	this.unload = function() {
		
		this.conf.unloading = true;
		
		// dnd
		if (this._dndInitModule) this._dndUnloadModule();
		
		// windows
		for (var a in this.w) this._winClose(a);
		this.w = null;
		
		// context menu
		if (this.cm != null && typeof(this._unloadContextMenu) == "function") this._unloadContextMenu();
		
		// events
		window.dhx4._eventable(this, "clear");
		
		// viewport
		this.attachViewportTo(null);
		
		// conf
		for (var a in this.conf) {
			this.conf[a] = null;
			delete this.conf[a];
		}
		
		for (var a in this) this[a] = null;
		
		that = a = null;
		
	}
	
	window.dhx4._eventable(this);
	
	this.attachEvent("_winMouseDown", this._winMouseDownHandler);
	
	if (this._dndInitModule) this._dndInitModule();
	
	if (conf.wins != null) {
		for (var q=0; q<conf.wins.length; q++) {
			var r = conf.wins[q];
			this.createWindow(r);
		}
	}
	conf = null;
	
	
	return this;
};

// common
dhtmlXWindows.prototype.forEachWindow = function(func) {
	for (var a in this.w) {
		func.apply(window, [this.w[a].cell]);
	}
};
dhtmlXWindows.prototype.window = function(id) {
	if (this.w[id] != null) return this.w[id].cell;
	return null;
};
dhtmlXWindows.prototype.isWindow = function(id) {
	return (this.w[id] != null);
};
dhtmlXWindows.prototype.findByText = function(text) {
	var p = [];
	for (var a in this.w) {
		if ((this.w[a].cell.getText()).indexOf(String(text)) >= 0) p.push(this.w[a]);
	}
	return p;
};
dhtmlXWindows.prototype.setSkin = function(skin) {
	if (skin == this.conf.skin) return;
	if (this.vp != null) {
		this.vp.className = String(this.vp.className).replace("dhxwins_vp_"+this.conf.skin," dhxwins_vp_"+skin);
	}
	for (var a in this.w) {
		this.w[a].cell._resetSizeState();
		this._winAdjustCell(a);
		this._winAdjustTitle(a);
	}
	this.conf.skin = skin;
};


// z-index
dhtmlXWindows.prototype.getBottommostWindow = function() {
	return this._getTopBottomWin(false);
};
dhtmlXWindows.prototype.getTopmostWindow = function() {
	return this._getTopBottomWin(true);
};
dhtmlXWindows.prototype._getTopBottomWin = function(mode) {
	var data = null;
	for (var a in this.w) {
		if (this.w[a].conf.visible) {
			var k = false;
			if (data != null) {
				k = data.z > this.w[a].win.style.zIndex;
				if (mode) k = !k;
			}
			if (data == null || k) data = {id: a, z: this.w[a].win.style.zIndex};
		}
	}
	return (data?data.id:null);
};
dhtmlXWindows.prototype._winMakeActive = function(id, force) {
	
	// if id is null activate last z-index window
	
	if (id != null && force !== true && this.w[id].conf.actv == true) return;
	
	var all = [];
	
	// z-index order, from top to bottom,
	// first modal, then sticked if any, then regular
	var props = [
		{name: "modal",   value: true},
		{name: "sticked", value: true},
		{name: "sticked", value: false}
	];
	var inList = {};
	
	for (var q=0; q<props.length; q++) {
		
		var propName = props[q].name;
		var propValue = props[q].value;
		
		var st = [];
		
		// windows matched to prop but not with specified id
		for (var a in this.w) {
			var w = this.w[a];
			if (inList[a] == null && w.conf[propName] === propValue && w.conf.visible == true) {
				if (id != a) {
					window.dhx4.zim.clear(w.conf.z_id);
					st.push([a, Number(w.win.style.zIndex)]);
					inList[a] = true;
				}
			}
			w = null;
		}
		st.sort(function(a,b){
			return (a[1]<b[1]?1:-1);
		});
		
		// check windows which is specified to be active
		if (id != null && this.w[id].conf[propName] === propValue && inList[id] == null) {
			// clear zim
			window.dhx4.zim.clear(this.w[id].conf.z_id);
			var k = [[id, Number(this.w[id].win.style.zIndex)]];
			st = k.concat(st);
			inList[id] = true;
		}
		
		all = all.concat(st);
	}
	
	// change windows' z-index
	for (var q=all.length-1; q>=0; q--) {
		
		var a = all[q][0];
		var w = this.w[a];
		
		w.win.style.zIndex = window.dhx4.zim.reserve(w.conf.z_id);
		
		// adjust modal cover z-index
		if (w.conf.modal && this.mcover != null) {
			for (var b in this.mcover) this.mcover[b].style.zIndex = w.win.style.zIndex;
		}
		
		// ajust fr_cover if any
		this._winAdjustFRMZIndex(a);
		
		// if id not specified, make last z-index active, can be triggered from _winHide
		if (id == null && q == 0) id = a;
		
		w.conf.actv = (id==a);
		w.win.className = (w.conf.actv?"dhxwin_active":"dhxwin_inactive");
		
		w = null;
	}
	
	if (id != null && this.conf.last_active != id) this._callMainEvent("onFocus", id);
	
	this.conf.last_active = id;
	
};

// viewports
dhtmlXWindows.prototype.attachViewportTo = function(id) {
	
	// old one
	if (this.conf.vp_custom) {
		while (this.vp.childNodes.length > 0) this.vp.removeChild(this.vp.lastChild);
		this.vp.parentNode.removeChild(this.vp);
		this.vp = null;
	} else if (this.vp != null) {
		this.vp.className = String(this.vp.className).replace(new RegExp("\\s{1,}dhxwins_vp_"+this.conf.skin),"");
	}
	
	// new if set
	if (id == null) {
		
		this.vp = null; // clear link
		
	} else {
		
		this.vp = (typeof(id)=="string"?document.getElementById(id):id);
		this.vp.className += " dhxwins_vp_"+this.conf.skin;
		id = null;
		
		// windows
		for (var a in this.w) this.vp.appendChild(this.w[a].win);
		
		this.conf.vp_custom = false;
		
	}
	
	if (this.vp == document.body) {
		document.body.style.position = "static"; // abs-left/top broken for relative/absolute
	}
	
};

dhtmlXWindows.prototype.setViewport = function(x, y, width, height, parentObj) {
	
	var t = document.createElement("DIV");
	
	t.style.position = "absolute";
	t.style.left = x+"px";
	t.style.top = y+"px";
	t.style.width = width+"px";
	t.style.height = height+"px";
	
	if (typeof(parentObj) == "undefined" || parentObj == null) {
		parentObj = document.body;
	} else if (typeof(parentObj) == "string") {
		parentObj = document.getElementById(parentObj);
	}
	parentObj.appendChild(t);
	
	this.attachViewportTo(t);
	this.conf.vp_custom = true;
	
	parentObj = t = null;
	
};

// position
dhtmlXWindows.prototype._winSetPosition = function(id, x, y) {
	
	var w = this.w[id];
	
	if (w.conf.maxed) {
		// probably window have max_w/max_h set and dragable
		// adjust saved w/h
		w.conf.lastMX += (x-w.conf.x);
		w.conf.lastMY += (y-w.conf.y);
	}
	
	w.conf.x = x;
	w.conf.y = y;
	
	w.win.style.left = w.conf.x+"px";
	w.win.style.top = w.conf.y+"px";
	
	this._winAdjustFRMPosition(id);
	
	w = null;
};
dhtmlXWindows.prototype._winAdjustPosition = function(id, x, y) { // check if window out of viewport
	
	var w = this.w[id];
	
	// if called from cell's adjustPosition, just make sure window position is okey
	if (typeof(x) == "undefined") x = w.conf.x;
	if (typeof(y) == "undefined") y = w.conf.y;
	
	var minX = (w.conf.keep_in_vp?0:-w.conf.w+this.conf.vp_pos_ofs);
	var maxX = (w.conf.keep_in_vp?this.vp.clientWidth-w.conf.w:this.vp.clientWidth-this.conf.vp_pos_ofs);
	
	if (x < minX) {
		x = minX;
	} else if (x > maxX) {
		x = maxX;
	}
	
	var maxY = (w.conf.keep_in_vp?this.vp.clientHeight-w.conf.h:this.vp.clientHeight-this.conf.vp_pos_ofs);
	
	if (y < 0) {
		y = 0;
	} else if (y > maxY) {
		y = maxY;
	}
	
	if (x != w.conf.x || y != w.conf.y) {
		this._winSetPosition(id, x, y);
	}
	
	w = null;
};

// dimension
dhtmlXWindows.prototype._winSetSize = function(id, width, height, skipAdjust, fixPos) {
	
	var w = this.w[id];
	
	var w2 = (width != null ? width : w.conf.w);
	var h2 = (height != null ? height : w.conf.h);
	
	if (this.conf.ofs_w == null) {
		w.win.style.width = w2+"px";
		w.win.style.height = h2+"px";
		this.conf.ofs_w = w.win.offsetWidth-w2;
		this.conf.ofs_h = w.win.offsetHeight-h2;
	}
	
	if (w.conf.min_w != null && w2 < w.conf.min_w) w2 = w.conf.min_w;
	if (w.conf.max_w != null && w2 > w.conf.max_w) w2 = w.conf.max_w;
	
	if (!w.conf.parked && w.conf.min_h != null && h2 < w.conf.min_h) h2 = w.conf.min_h;
	if (w.conf.max_h != null && h2 > w.conf.max_h) h2 = w.conf.max_h;
	
	if (w.conf.keep_in_vp) {
		if (w2 > this.vp.clientWidth) w2 = this.vp.clientWidth;
		if (h2 > this.vp.clientHeight) h2 = this.vp.clientHeight;
	}
	
	w.win.style.width = w2-this.conf.ofs_w+"px";
	w.win.style.height = h2-this.conf.ofs_h+"px";
	
	w.conf.w = w2;
	w.conf.h = h2;
	
	this._winAdjustFRMSize(id);
	
	if (fixPos) this._winAdjustPosition(id, w.conf.x, w.conf.y);
	
	// adjust content
	if (!w.conf.parked && skipAdjust != true) this._winAdjustCell(id);
	
	w = null;
};

// minmax
dhtmlXWindows.prototype._winMinmax = function(id, mode) {
		
	if (typeof(mode) != "undefined" && this.w[id].conf.maxed == mode) return; // already requested state
	if (this.w[id].conf.allow_resize == false) return;
	
	var w = this.w[id];
	
	if (w.conf.parked) this._winPark(id, false);
	
	if (w.conf.maxed) {
		
		this._winSetSize(id, w.conf.lastMW, w.conf.lastMH);
		this._winAdjustPosition(id, w.conf.lastMX, w.conf.lastMY);
		w.conf.maxed = false;
		
	} else {
		
		var x = 0;
		var y = 0;
		
		// adjust position, if any max w/h values - do not allow win to be moved outside vp
		if (w.conf.max_w != null) x = w.conf.x + Math.round(w.conf.w-w.conf.max_w)/2;
		if (w.conf.max_h != null) y = Math.max(w.conf.y + Math.round(w.conf.h-w.conf.max_h)/2, 0);
		
		// save old coords and dim
		w.conf.lastMX = w.conf.x;
		w.conf.lastMY = w.conf.y;
		w.conf.lastMW = w.conf.w;
		w.conf.lastMH = w.conf.h;
		
		this._winSetSize(id, this.vp.clientWidth, this.vp.clientHeight);
		this._winAdjustPosition(id, x, y);
		
		
		w.conf.maxed = true;
		
	}
	
	w.b.minmax.setCss(w.conf.maxed?"minmaxed":"minmax");
	
	if (w.conf.maxed) {
		this._callMainEvent("onMaximize", id);
	} else {
		this._callMainEvent("onMinimize", id);
	}
	
	
	w = null;
};

// show/hide
dhtmlXWindows.prototype._winShow = function(id, makeActive) {
	
	if (this.w[id].conf.visible == true) return;
	
	this.w[id].win.style.display = "";
	this.w[id].conf.visible = true;
	
	// makeActive set to true or only this window is visible
	if (makeActive == true || this.conf.last_active == null) this._winMakeActive(id, true);
	
	this._callMainEvent("onShow", id);
};
dhtmlXWindows.prototype._winHide = function(id, actvId) {
	
	if (this.w[id].conf.visible == false) return;
	
	this.w[id].win.style.display = "none";
	this.w[id].conf.visible = false;
	
	if (this.w[id].conf.actv) {
		this.w[id].conf.actv = false;
		this.w[id].win.className = "dhxwin_inactive";
		this._winMakeActive(null, true);
	}
	
	this._callMainEvent("onHide", id);
};

// park
dhtmlXWindows.prototype._winPark = function(id, ef) {
		
	if (this.w[id].conf.allow_park == false) return;
	if (this.w[id].conf.header == false) return;
	
	var w = this.w[id];
	
	if (ef == true && this.conf.tr.prop !== false) {
		w.win.style[this.conf.tr.prop] = this.conf.tr[w.conf.parked?"height_open":"height_close"];
		if (!w.conf.tr_ev) {
			w.win.addEventListener(this.conf.tr.ev, this._winOnParkTrans, false);
			w.conf.tr_ev = true;
		}
	}
	
	if (w.conf.parked) {
		// restore
		w.hdr.className = String(w.hdr.className).replace(/\s{1,}dhxwin_hdr_parked/gi,"");
		w.hdr.style.zIndex = 0;
		w.conf.parked = false;
		w.conf.tr_mode = "park";
		this._winCellSetOpacity(id, "open", ef);
		this._winSetSize(id, w.conf.w, w.conf.lastPH, (ef==true && this.conf.tr.prop!==false)); // adjust cont if trans not available
		if (!(ef == true && this.conf.tr.prop !== false)) {
			this._callMainEvent("onParkDown", id);
			if (w.conf.keep_in_vp) this._winAdjustPosition(id, w.conf.x, w.conf.y);
		}
	} else {
		// park
		w.conf.lastPH = w.conf.h;
		w.hdr.className += " dhxwin_hdr_parked";
		if (ef == false || this.conf.tr.prop == false) w.hdr.style.zIndex = 3; // no-trans
		w.conf.parked = true;
		w.conf.tr_mode = "park";
		this._winCellSetOpacity(id, "close", ef);
		this._winSetSize(id, w.conf.w, w.hdr.offsetHeight+this.conf.ofs_h, (ef==true && this.conf.tr.prop!==false)); // adjust cont if trans not available
		if (!(ef == true && this.conf.tr.prop !== false)) this._callMainEvent("onParkUp", id);
	}
	
	w = null;
	
};
dhtmlXWindows.prototype._winCellSetOpacity = function(id, op, ef, mode) {
	var cell = this.w[id].cell;
	for (var a in cell.conf.idx) {
		if ({pr1:true,pr2:true}[a] != true) { // skip progress
			if (ef == true && this.conf.tr.prop != false) cell.cell.childNodes[cell.conf.idx[a]].style[this.conf.tr.prop] = this.conf.tr["op_"+op];
			cell.cell.childNodes[cell.conf.idx[a]].style.opacity = this.conf.tr["op_v_"+op];
		}
	}
	cell = null;
};
dhtmlXWindows.prototype._winCellClearOpacity = function(id) {
	var cell = this.w[id].cell;
	for (var a in cell.conf.idx) {
		if ({pr1:true,pr2:true}[a] != true) { // skip progress
			if (this.conf.tr.prop != false) cell.cell.childNodes[cell.conf.idx[a]].style[this.conf.tr.prop] = "";
		}
	}
	cell = null;
};

// stick
dhtmlXWindows.prototype._winStick = function(id, mode) {
	
	if (typeof(mode) != "undefined" && this.w[id].conf.sticked == mode) return; // already requested state
	
	this.w[id].conf.sticked = !this.w[id].conf.sticked;
	this.w[id].b.stick.setCss(this.w[id].conf.sticked?"sticked":"stick");
	
	this._winMakeActive(this.conf.last_active, true);
	if (this.w[id].conf.sticked) {
		this._callMainEvent("onStick", id);
	} else {
		this._callMainEvent("onUnStick", id);
	}
};

// close
dhtmlXWindows.prototype._winClose = function(id) {
	
	if (this._callMainEvent("onClose", id) !== true && this.conf.unloading != true) return;
	var w = this.w[id];
	
	if (w.conf.fs_mode) w.cell.setToFullScreen(false);
	if (w.conf.modal) this._winSetModal(id, false);
	
	// z-index clear
	window.dhx4.zim.clear(w.conf.z_id);
	
	// context menu
	if (this.cm != null && this.cm.icon[id] != null) {
		this._detachContextMenu("icon", id, null);
	}
	
	// header click/dblclick events
	if (typeof(window.addEventListener) == "function") {
		w.win.removeEventListener("mousedown", this._winOnMouseDown, false);
		if (this.conf.dblclick_ev) w.win.removeEventListener("dblclick", this._winOnMouseDown, false);
	} else {
		w.win.detachEvent("onmousedown", this._winOnMouseDown);
		if (this.conf.dblclick_ev) w.win.attachEvent("ondblclick", this._winOnMouseDown);
	}
	
	// buttons
	for (var a in w.b) this._winRemoveButton(id, a, true);
	w.b = null;
	
	// cell
	w.cell._unload();
	w.cell = null;
	
	// border
	w.brd.parentNode.removeChild(w.brd);
	w.brd = null;
	
	// covers
	if (w.fr_cover != null) {
		w.fr_cover.parentNode.removeChild(w.fr_cover);
		w.fr_cover = null;
	}
	if (w.fr_m_cover != null) {
		w.fr_m_cover.parentNode.removeChild(w.fr_m_cover);
		w.fr_m_cover = null;
	}
	
	// hdr
	w.hdr._isWinHdr = true;
	w.hdr.firstChild._isWinIcon = true;
	w.hdr.onselectstart = null;
	w.hdr.parentNode.removeChild(w.hdr);
	w.hdr = null;
	
	// conf
	for (var a in w.conf) {
		w.conf[a] = null;
		delete w.conf[a];
	}
	w.conf = null;
	
	// win
	w.win._idd = null;
	w.win._isWindow = null;
	w.win.parentNode.removeChild(w.win);
	w.win = null;
	
	w = null;
	this.w[id] = null;
	delete this.w[id];
	
	// activate topmost window
	if (!this.conf.unloading) this._winMakeActive(null, true);
	
};

// modal
dhtmlXWindows.prototype._winSetModal = function(id, modal, removeCover) {
	
	if (this.w[id].conf.modal == modal) return; // already have specified modal state
	
	if (typeof(removeCover) == "undefined") removeCover = true;
	
	var w = this.w[id];
	
	if (modal == true && w.conf.modal == false) {
		
		// remove modality from prev window
		if (this.conf.last_modal != null) {
			this._winSetModal(this.conf.last_modal, false, false);
		}
		
		if (this.mcover == null) {
			
			// create a new one
			var d = document.createElement("DIV");
			d.className = "dhxwins_mcover";
			this.vp.insertBefore(d, w.fr_m_cover||w.win);
			this.mcover = {d:d};
			
			if (this.conf.fr_cover) {
				this.mcover.f = document.createElement("IFRAME");
				this.mcover.f.className = "dhxwins_mcover";
				this.mcover.f.border = 0;
				this.mcover.f.frameBorder = 0;
				this.vp.insertBefore(this.mcover.f,d);
			}
			
			d = null;
			
		} else if (this.mcover.d.nextSibling != (w.fr_m_cover||w.win)) {
			// move cover to place it before modal window
			this.vp.insertBefore(this.mcover.d, w.fr_m_cover||w.win);
			if (this.mcover.f != null) this.vp.insertBefore(this.mcover.f, this.mcover.d);
		}
		
		w.conf.modal = true;
		this.conf.last_modal = id;
		
		this._winMakeActive(id, true);
		
	} else if (modal == false && w.conf.modal == true) {
		
		// remove modality, clear cover
		
		w.conf.modal = false;
		this.conf.last_modal = null;
		
		if (removeCover && this.mcover != null) {
			for (var a in this.mcover) {
				
				this.vp.removeChild(this.mcover[a]);
				this.mcover[a] = null;
			}
			this.mcover = null;
		}
		
	}
	
	w = null;
};

// misc
dhtmlXWindows.prototype._winMouseDownHandler = function(e, data) {
	
	var t = e.target||e.srcElement;
	
	if (e.button >= 2) return;
	
	if (data.mode == "button") {
		if (data.press_type == "mousedown") {
			this.conf.button_last = data.button_name;
		} else if (data.press_type == "mouseup" && data.button_name == this.conf.button_last) {
			this.conf.button_last = null;
			if (this._winButtonClick(data.id, data.button_name, e) !== true) return;
		}
	}
	
	if ((data.press_type == "mousedown" || data.press_type == "dblclick") && data.mode == "hdr") {
		
		// dblclick
		this.conf.dblclick_active = false;
		if (this.conf.dblclick_ev == true) {
			// IE6, IE7, IE8 native dblclick event
			if (data.press_type == "dblclick") this.conf.dblclick_active = true;
		} else {
			
			if (this.conf.dblclick_last == null) {
				this.conf.dblclick_last = new Date().getTime();
				this.dblclick_id = data.id;
			} else {
				var t = new Date().getTime();
				if (this.conf.dblclick_last + this.conf.dblclick_tm > t && this.dblclick_id == data.id) {
					this.conf.dblclick_active = true;
					this.conf.dblclick_last = null;
					this.dblclick_id = null;
				} else {
					this.conf.dblclick_last = t;
					this.dblclick_id = data.id;
				}
			}
		}
		if (this.conf.dblclick_active) {
			this._winDoHeaderDblClick(data.id);
			return;
		}
	}
	
	// for all modes
	if (data.press_type == "mousedown") this._winMakeActive(data.id);
	
};

dhtmlXWindows.prototype._winDoHeaderDblClick = function(id) {
	if (this.conf.dblclick_mode == "minmax") {
		this._winMinmax(id);
		return;
	}
	if (this.conf.dblclick_mode == "park") {
		this._winPark(id, true);
		return;
	}
	// use action if any
	if (typeof(this.conf.dblclick_mode) == "function") {
		this.conf.dblclick_mode.apply(window, [id]);
		return;
	}
	if (typeof(window[this.conf.dblclick_mode]) == "function") {
		window[this.conf.dblclick_mode].apply(window, [id]);
		return;
	}
};
dhtmlXWindows.prototype._winAdjustCell = function(id) {
	
	var w = this.w[id];
	
	var x = 1;
	var y = (w.conf.header?w.hdr.offsetHeight:1);
	var width = w.win.clientWidth-2;
	var height = w.win.clientHeight-y-1;
	
	w.brd.style.left = x+"px";
	w.brd.style.top = y+"px";
	if (w.conf.brd == null) {
		w.brd.style.width = width+"px";
		w.brd.style.height = height+"px";
		w.conf.brd = {
			w: width-w.brd.offsetWidth,
			h: height-w.brd.offsetHeight
		};
	}
	w.brd.style.width = width+w.conf.brd.w+"px";
	w.brd.style.height = height+w.conf.brd.h+"px";
	
	var p = 5;
	
	var x2 = 1+p;
	var y2 = (w.conf.header?y:y+p);
	var w2 = w.brd.clientWidth;
	var h2 = w.brd.clientHeight;
	
	w.cell._setSize(x2, y2, w2, h2);
	
	w.fr_cover.style.left = x2+"px";
	w.fr_cover.style.top = y2+"px";
	w.fr_cover.style.width = w2+"px";
	w.fr_cover.style.height = h2+"px";
	
	w = null;
};
dhtmlXWindows.prototype._winAdjustTitle = function(id) {
	var icon = this.w[id].hdr.childNodes[0];
	var text = this.w[id].hdr.childNodes[1];
	var btns = this.w[id].hdr.childNodes[2];
	text.style.paddingLeft = icon.offsetWidth+12+"px";
	text.style.paddingRight = btns.offsetWidth+10+"px";
	text = btns = icon = null;
};
dhtmlXWindows.prototype._callMainEvent = function(name, id) {
	var w = this.w[id];
	if (w.cell.checkEvent(name)) {
		var r = w.cell._callMainEvent(name, [w.cell]);
	} else {
		var r = this.callEvent(name, [w.cell]);
	}
	w = null;
	return r;
};

// fr_m_cover
dhtmlXWindows.prototype._winInitFRM = function(id) {
	if (this.conf.fr_cover != true) return;
	var w = this.w[id];
	var f = document.createElement("IFRAME");
	f.className = "dhxwin_main_fr_cover";
	f.border = 0;
	f.frameBorder = 0;
	f.style.zIndex = w.win.style.zIndex;
	w.win.parentNode.insertBefore(f, w.win);
	w.fr_m_cover = f;
	f = null;
};
dhtmlXWindows.prototype._winAdjustFRMSize = function(id) {
	var w = this.w[id];
	if (w.fr_m_cover != null) {
		w.fr_m_cover.style.width = w.conf.w+"px";
		w.fr_m_cover.style.height = w.conf.h+"px";
	}
	w = null;
};
dhtmlXWindows.prototype._winAdjustFRMPosition = function(id) {
	var w = this.w[id];
	if (w.fr_m_cover != null) {
		w.fr_m_cover.style.left = w.win.style.left;
		w.fr_m_cover.style.top = w.win.style.top;
	}
	w = null;
};
dhtmlXWindows.prototype._winAdjustFRMZIndex = function(id) {
	var w = this.w[id];
	if (w.fr_m_cover != null) {
		w.fr_m_cover.style.zIndex = w.win.style.zIndex;
	}
	w = null;
};

function dhtmlXWindowsCell(id, wins) {
	
	dhtmlXCellObject.apply(this, [id, "_wins"]);
	
	this.wins = wins;
	
	this.cell._winId = id;
	this.conf.skin = this.wins.conf.skin;
	
	this.attachEvent("_onCellUnload", function(){
		
		if (this._unloadResize) {
			this._unloadResize();
		}
		
		window.dhx4._eventable(this.cell, "clear");
		
		this.cell._winId = null;
		this.wins = null;
		
		this.setText = null;
		this.getText = null;
		this.allowMove = null;
		this.denyMove = null;
		this.isMovable = null;
		this.allowResize = null;
		this.denyResize = null;
		this.isResizable = null;
		this.maximize = null;
		this.minimize = null;
		this.isMaximized = null;
		this.setPosition = null;
		this.getPosition = null;
		this.adjustPosition = null;
		this.park = null;
		this.isParked = null;
		this.allowPark = null;
		this.denyPark = null;
		this.isParkable = null;
		this.show = null;
		this.hide = null;
		this.isHidden = null;
		this.stick = null;
		this.unstick = null;
		this.isSticked = null;
		this.setDimension = null;
		this.getDimension = null;
		this.setMinDimension = null;
		this.getMinDimension = null;
		this.setMaxDimension = null;
		this.getMaxDimension = null;
		this.keepInViewport = null;
		this.center = null;
		this.centerOnScreen = null;
		this.bringToTop = null;
		this.bringToBottom = null;
		this.isOnTop = null;
		this.isOnBottom = null;
		this.showHeader = null;
		this.hideHeader = null;
		this.setModal = null;
		this.isModal = null;
		this.close = null;
		
		this._adjustByCont = null;
		
		this.button = null;
		this.addUserButton = null;
		this.removeUserButton = null;
		
		that = null;
	});
	
	this.attachEvent("_onContentLoaded", function() {
		this.wins._callMainEvent("onContentLoaded", this._idd);
	});
	this.attachEvent("_onContentMouseDown", function(id,e) {
		this.wins.callEvent("_winMouseDown",[e,{id:id,mode:"win"}]);
	});
	
	this._callMainEvent = function(name, args) {
		return this.callEvent(name, args);
	}
	
	// open/close, check trans-effects
	
	this.conf.tr = {};
	for (var a in this.wins.conf.tr) this.conf.tr[a] = this.wins.conf.tr[a];
	
	if (this.conf.tr.prop != false) {
		/* 
		this.attachEvent("_onIdxUpdated", function(){
			// if cell hidden - update opacity for menu/toolbar/status which attached to parked window
			if (this.wins.w[this._idd].conf.parked) {
				for (var a in this.conf.idx) {
					if ({hdr:true,pr1:true,pr2:true}[a] != true) { // skip hdr and progress
						this.wins._winCellSetOpacity(this._idd, "close", false);
					}
				}
			}
		});
		*/
	}
	
	
	if (this._initResize) this._initResize();
	
	// personal window events,
	// dhxWins.window(id).attachEvent()
	window.dhx4._eventable(this.cell);
	
	// adjustParentSize (for form)
	var that = this;
	this.cell.attachEvent("_setCellSize", function(w, h){
		var w0 = that.wins.w[this._winId].conf.w-that.conf.size.w;
		var h0 = that.wins.w[this._winId].conf.h-that.conf.size.h;
		that.setDimension(w+w0, h+h0);
	});
	
	return this;
	
};

dhtmlXWindowsCell.prototype = new dhtmlXCellObject();

// text
dhtmlXWindowsCell.prototype.setText = function(text) {
	this.wins.w[this._idd].conf.text = text;
	this.wins.w[this._idd].hdr.childNodes[1].firstChild.innerHTML = text;
};
dhtmlXWindowsCell.prototype.getText = function() {
	return this.wins.w[this._idd].conf.text;
};

// move/dnd
dhtmlXWindowsCell.prototype.allowMove = function() {
	this.wins.w[this._idd].conf.allow_move = true;
};
dhtmlXWindowsCell.prototype.denyMove = function() {
	this.wins.w[this._idd].conf.allow_move = false;
};
dhtmlXWindowsCell.prototype.isMovable = function() {
	return (this.wins.w[this._idd].conf.allow_move == true);
};

// resize
dhtmlXWindowsCell.prototype.allowResize = function() {
	this.wins.w[this._idd].conf.allow_resize = true;
	this.wins.w[this._idd].b.minmax.enable();
};
dhtmlXWindowsCell.prototype.denyResize = function() {
	this.wins.w[this._idd].conf.allow_resize = false;
	this.wins.w[this._idd].b.minmax.disable();
};
dhtmlXWindowsCell.prototype.isResizable = function() {
	return (this.wins.w[this._idd].conf.allow_resize == true);
};

// min/max
dhtmlXWindowsCell.prototype.maximize = function() {
	this.wins._winMinmax(this._idd, true);
};
dhtmlXWindowsCell.prototype.minimize = function() {
	this.wins._winMinmax(this._idd, false);
};
dhtmlXWindowsCell.prototype.isMaximized = function() {
	return (this.wins.w[this._idd].conf.maxed == true);
};

// position
dhtmlXWindowsCell.prototype.setPosition = function(x, y) {
	this.wins._winSetPosition(this._idd, x, y);
};
dhtmlXWindowsCell.prototype.getPosition = function() {
	var w = this.wins.w[this._idd];
	var p = [w.conf.x,w.conf.y];
	w = null;
	return p;
};
dhtmlXWindowsCell.prototype.adjustPosition = function() {
	this.wins._winAdjustPosition(this._idd);
};

// parking
dhtmlXWindowsCell.prototype.park = function() {
	this.wins._winPark(this._idd, true); // with effect
};
dhtmlXWindowsCell.prototype.isParked = function() {
	return (this.wins.w[this._idd].conf.parked == true);
};
dhtmlXWindowsCell.prototype.allowPark = function() {
	this.wins.w[this._idd].conf.allow_park = true;
	this.wins.w[this._idd].b.park.enable();
};
dhtmlXWindowsCell.prototype.denyPark = function() {
	this.wins.w[this._idd].conf.allow_park = false;
	this.wins.w[this._idd].b.park.disable();
};
dhtmlXWindowsCell.prototype.isParkable = function() {
	return (this.wins.w[this._idd].conf.allow_park == true);
};

// show/hide
dhtmlXWindowsCell.prototype.show = function(makeActive) {
	this.wins._winShow(this._idd, window.dhx4.s2b(makeActive));
};
dhtmlXWindowsCell.prototype.hide = function() {
	this.wins._winHide(this._idd);
};
dhtmlXWindowsCell.prototype.isHidden = function() {
	return (this.wins.w[this._idd].conf.visible != true);
};

// sticking
dhtmlXWindowsCell.prototype.stick = function() {
	this.wins._winStick(this._idd, true);
};
dhtmlXWindowsCell.prototype.unstick = function() {
	this.wins._winStick(this._idd, false);
};
dhtmlXWindowsCell.prototype.isSticked = function() {
	return (this.wins.w[this._idd].conf.sticked == true);
};

// dimension
dhtmlXWindowsCell.prototype.setDimension = function(width, height) {
	var w = this.wins.w[this._idd];
	if (w.conf.parked) this.wins._winPark(this._idd, false);
	if (w.conf.maxed) {
		if (width != null) w.conf.lastMW = width;
		if (height != null) w.conf.lastMH = height;
		this.wins._winMinmax(this._idd);
	} else {
		this.wins._winSetSize(this._idd, width, height, false, true);
	}
	w = null;
};
dhtmlXWindowsCell.prototype.getDimension = function() {
	var w = this.wins.w[this._idd];
	var d = [w.conf.w, w.conf.h];
	w = null;
	return d;
};
dhtmlXWindowsCell.prototype.setMinDimension = function(width, height) {
	var w = this.wins.w[this._idd];
	w.conf.min_w = width;
	w.conf.min_h = height;
	// parked and maxed will ajusted in _winSetSize
	this.wins._winSetSize(this._idd, w.conf.w, w.conf.h);
	w = null;
};
dhtmlXWindowsCell.prototype.getMinDimension = function() {
	var w = this.wins.w[this._idd];
	var d = [w.conf.min_w, w.conf.min_h];
	w = null;
	return d;
};
dhtmlXWindowsCell.prototype.setMaxDimension = function(width, height) {
	var w = this.wins.w[this._idd];
	w.conf.max_w = width;
	w.conf.max_h = height;
	// parked and maxed will ajusted in _winSetSize
	this.wins._winSetSize(this._idd, w.conf.w, w.conf.h);
	w = null;
};
dhtmlXWindowsCell.prototype.getMaxDimension = function() {
	var w = this.wins.w[this._idd];
	var d = [w.conf.max_w, w.conf.max_h];
	w = null;
	return d;
};

// viewport
dhtmlXWindowsCell.prototype.keepInViewport = function(mode) {
	this.wins.w[this._idd].conf.keep_in_vp = window.dhx4.s2b(mode);
};
dhtmlXWindowsCell.prototype.center = function() {
	
	var vp = this.wins.vp;
	var w = this.wins.w[this._idd];
	
	var x = Math.round((vp.clientWidth-w.conf.w)/2);
	var y = Math.round((vp.clientHeight-w.conf.h)/2);
	
	this.wins._winSetPosition(this._idd, x, y);
	vp = w = null;
};
dhtmlXWindowsCell.prototype.centerOnScreen = function() {
	
	var w = this.wins.w[this._idd];
	var dim = window.dhx4.screenDim();
	
	// viewport correction
	var vx = window.dhx4.absLeft(this.wins.vp);
	var vy = window.dhx4.absTop(this.wins.vp);
	var k = this.wins.vp.parentNode;
	while (k != null) {
		if (k.scrollLeft) vx = vx-k.scrollLeft;
		if (k.scrollTop) vy = vy-k.scrollTop;
		k = k.parentNode;
	}
	
	var x = Math.round((dim.right-dim.left-w.conf.w)/2);
	var y = Math.round((dim.bottom-dim.top-w.conf.h)/2);
	
	this.wins._winAdjustPosition(this._idd, x-vx, y-vy);
	d = w = null;
	
};

// z-index
dhtmlXWindowsCell.prototype.bringToTop = function() {
	this.wins._winMakeActive(this._idd, true);
};
dhtmlXWindowsCell.prototype.bringToBottom = function() {
	var actv = (this.wins.w[this._idd].conf.actv?null:this.wins.conf.last_active);
	window.dhx4.zim.clear(this.wins.w[this._idd].conf.z_id);
	this.wins.w[this._idd].win.style.zIndex = 0;
	this.wins._winMakeActive(actv, true);
};
dhtmlXWindowsCell.prototype.isOnTop = function() {
	return (this.wins.w[this._idd].conf.actv == true);
};
dhtmlXWindowsCell.prototype.isOnBottom = function() {
	var data = {id: null, z:+Infinity};
	for (var a in this.wins.w) {
		if (this.wins.w[a].conf.visible && this.wins.w[a].win.style.zIndex < data.z) {
			data.id = a;
			data.z = this.wins.w[a].win.style.zIndex;
		}
	}
	return (data.id==this._idd);
};

// header
dhtmlXWindowsCell.prototype.showHeader = function() {
	var w = this.wins.w[this._idd];
	if (w.conf.header == false) {
		w.hdr.className = String(w.hdr.className).replace(/\s{0,}dhxwin_hdr_hidden/gi,"");
		w.brd.className = String(w.brd.className).replace(/\s{0,}dhxwin_hdr_hidden/gi,"");
		this.conf.cells_cont = null; // reset saved borders
		w.conf.brd = null; // reset brd
		w.conf.header = true;
		this.wins._winAdjustCell(this._idd);
	}
	w = null;
};
dhtmlXWindowsCell.prototype.hideHeader = function() {
	var w = this.wins.w[this._idd];
	if (w.conf.header == true) {
		if (w.conf.parked) this.wins._winPark(this._idd, false);
		w.hdr.className += " dhxwin_hdr_hidden";
		w.brd.className += " dhxwin_hdr_hidden";
		this.conf.cells_cont = null; // reset saved borders
		w.conf.brd = null; // reset brd
		w.conf.header = false;
		this.wins._winAdjustCell(this._idd);
	}
	w = null;
};

// modality
dhtmlXWindowsCell.prototype.setModal = function(modal) {
	this.wins._winSetModal(this._idd, window.dhx4.s2b(modal));
};
dhtmlXWindowsCell.prototype.isModal = function() {
	return (this.wins.w[this._idd].conf.modal==true);
};

// adjust cell to content
dhtmlXWindowsCell.prototype._adjustByCont = function(w, h) {
	w += this.wins.w[this._idd].conf.w-this.conf.size.w;
	h += this.wins.w[this._idd].conf.h-this.conf.size.h;
	this.wins._winSetSize(this._idd, w, h);
};

// closing
dhtmlXWindowsCell.prototype.close = function() {
	this.wins._winClose(this._idd);
};

// icon
dhtmlXWindowsCell.prototype.setIconCss = function(css) {
	this.wins.w[this._idd].hdr.firstChild.className = "dhxwin_icon "+css;
	this.wins._winAdjustTitle(this._idd);
};

// fullscreen mode
dhtmlXWindowsCell.prototype.setToFullScreen = function(mode) {
	
	mode = window.dhx4.s2b(mode);
	
	var w = this.wins.w[this._idd];
	
	if (w.conf.fs_mode == mode) {
		w = null;
		return;
	}
	
	if (this.wins.fsn == null) {
		this.wins.fsn = document.createElement("DIV");
		this.wins.fsn.className = this.wins.vp.className+" dhxwins_vp_fs";
		document.body.appendChild(this.wins.fsn);
	}
	
	if (mode) {
		this.wins.fsn.appendChild(w.win);
		this.maximize();
		this.hideHeader();
	} else {
		this.wins.vp.appendChild(w.win);
		this.minimize();
		this.showHeader();
		
		if (this.wins.fsn.childNodes.length == 0) {
			this.wins.fsn.parentNode.removeChild(this.wins.fsn);
			this.wins.fsn = null;
		}
	}
	
	w.conf.fs_mode = mode;
	w = null;
	
};
// buttons

dhtmlXWindowsCell.prototype.button = function(id) {
	if (id == "minmax1" || id == "minmax2") { // deprecated
		// console.warn("windows: minmax1/minmax2 buttons are deprecated, from 4.0 there is single button minmax");
		id = "minmax";
	}
	return this.wins.w[this._idd].b[id];
};

dhtmlXWindowsCell.prototype.addUserButton = function(id, pos, title) {
	var b = new dhtmlXWindowsButton(this.wins, this._idd, id, title, true);
	var n = null;
	var h = this.wins.w[this._idd].hdr.lastChild;
	if (isNaN(pos)) pos = 0; else if (pos < 0) pos = 0;
	if (h.childNodes[pos] != null) n = h.childNodes[pos];
	if (n != null) h.insertBefore(b.button, n); else h.appendChild(b.button);
	this.wins.w[this._idd].b[id] = b;
	b = n = h = null;
	this.wins._winAdjustTitle(this._idd);
};

dhtmlXWindowsCell.prototype.removeUserButton = function(id) {
	if (this.wins.w[this._idd].b[id] == null || this.wins.w[this._idd].b[id].conf.custom != true) return;
	this.wins._winRemoveButton(this._idd, id);
};


window.dhtmlXWindowsButton = function(wins, winId, name, title, custom) {
	
	this.conf = {
		wins: wins,
		winId: winId,
		name: name,
		enabled: true,
		visible: true,
		custom:  true
	};
	
	this.button = document.createElement("DIV");
	this.button._buttonName = name;
	this.button.title = title;
	
	this.enable = function() {
		this.conf.enabled = true;
		this.setCss(this.conf.css);
	}
	this.disable = function() {
		this.conf.enabled = false;
		this.setCss(this.conf.css);
	}
	this.isEnabled = function() {
		return (this.conf.enabled==true);
	}
	//
	this.show = function() {
		this.button.style.display = "";
		this.conf.visible = true;
		this.conf.wins._winAdjustTitle(this.conf.winId);
	}
	this.hide = function() {
		this.button.style.display = "none";
		this.conf.visible = false;
		this.conf.wins._winAdjustTitle(this.conf.winId);
	}
	this.isHidden = function() {
		return (this.conf.visible==false);
	}
	//
	this.setCss = function(css) {
		this.conf.css = css;
		var dis = (this.conf.enabled?"":"_dis");
		this.button.className = "dhxwin_button"+dis+" dhxwin_button_"+this.conf.css+dis;
	}
	
	this._doOnClick = function(ev) {
		return this.callEvent("onClick", [this.conf.wins.w[this.conf.winId].cell, this]);
	}
	
	this.unload = function(winClosing) {
		//
		dhx4._eventable(this, "clear");
		this.button._buttonName = null;
		this.button.parentNode.removeChild(this.button);
		
		// context context menu if any
		if (this.conf.wins.cm != null && this.conf.wins.cm.button[this.conf.winId] != null && this.conf.wins.cm.button[this.conf.winId][this.conf.name] != null) {
			this.conf.wins._detachContextMenu("button", this.conf.winId, this.conf.name);
		}
		
		this.button = null;
		this.enable = null;
		this.disable = null;
		this.isEnabled = null;
		this.show = null;
		this.hide = null;
		this.isHidden = null;
		this.setCss = null;
		this.unload = null;
		//
		if (winClosing != true) this.conf.wins._winAdjustTitle(this.conf.winId);
		//
		this.conf.wins = null;
		this.conf.winId = null;
		this.conf = null;
		
	}
	
	this.setCss(name);
	dhx4._eventable(this);
	
	return this;
};

dhtmlXWindows.prototype._winButtonClick = function(id, button, ev) {
	
	if (!this.w[id].b[button].isEnabled()) return true;
	
	if (this.w[id].b[button]._doOnClick() !== true) return;
	
	if (button == "help") {
		this._callMainEvent("onHelp", id);
	}
	
	if (button == "park") {
		this._winPark(id, true);
	}
	
	if (button == "minmax") {
		this._winMinmax(id);
	}
	
	if (button == "stick") {
		this._winStick(id);
		return false;
	}

	if (button == "close") {
		this._winClose(id);
		return false;
	}
	return true; // allow default action
};

dhtmlXWindows.prototype._winRemoveButton = function(wId, bId, winClosing) {
	this.w[wId].b[bId].unload(winClosing);
	this.w[wId].b[bId] = null;
	delete this.w[wId].b[bId];
};