/* 
 * @(#)dhtmlxcommon.js
 * 
 * Copyright (C) dhtmlx ltd. www.dhtmlx.com
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 * 
 * See GPL license : http://www.gnu.org/licenses/gpl.html
 *  
 */
 
function dtmlXMLLoaderObject(funcObject, dhtmlObject,async,rSeed)
{
	this.xmlDoc="";
	if (typeof(async)!= "undefined") this.async = async;
	else this.async = true;
	this.onloadAction=funcObject||null;
	this.mainObject=dhtmlObject||null;
	this.waitCall=null;
	this.rSeed=rSeed||false;
	return this
};

dtmlXMLLoaderObject.prototype.waitLoadFunction=function(dhtmlObject)
{
	var once=true;
	this.check=function ()
	{
		if ((dhtmlObject)&&(dhtmlObject.onloadAction!=null))
		{
			if ((!dhtmlObject.xmlDoc.readyState)||(dhtmlObject.xmlDoc.readyState == 4))
			{
				if (!once)return;
				once=false;
				dhtmlObject.onloadAction(dhtmlObject.mainObject,null,null,null,dhtmlObject);
				if (dhtmlObject.waitCall)
				{
					dhtmlObject.waitCall();
					dhtmlObject.waitCall=null
				}
			}
		}
	};

	return this.check
};

dtmlXMLLoaderObject.prototype.getXMLTopNode=function(tagName,oldObj)
{
	if (this.xmlDoc.responseXML)
	{
		var temp=this.xmlDoc.responseXML.getElementsByTagName(tagName);
		var z=temp[0]
	}
	else var z=this.xmlDoc.documentElement;

	if (z)
	{
		this._retry=false;
		return z
	};

	if ((_isIE)&&(!this._retry))
	{
		var xmlString=this.xmlDoc.responseText;
		var oldObj=this.xmlDoc;
		this._retry=true;
		this.xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
		this.xmlDoc.async=false;
		this.xmlDoc["loadX"+"ML"](xmlString);
		return this.getXMLTopNode(tagName,oldObj)
	};

	//dhtmlxError.throwError("LoadX"+"ML","Incorrect XML",[(oldObj||this.xmlDoc),this.mainObject]);

	return document.createElement("DIV")
};

dtmlXMLLoaderObject.prototype.loadXMLString=function(xmlString)
{
	if (_isKHTML)
	{
		var z=document.createElement('div');
		z.innerHTML = xmlString;
		this.xmlDoc=z;
		z.responseXML=z
	}
	else
	{
		try
		{
			var parser = new DOMParser();
			this.xmlDoc = parser.parseFromString(xmlString,"text/xml")
		}
		catch(e)
		{
			this.xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
			this.xmlDoc.async=this.async;
			this.xmlDoc["loadX"+"ML"](xmlString)
		}
	};
	this.onloadAction(this.mainObject,null,null,null,this);
	if (this.waitCall)
	{
		this.waitCall();
		this.waitCall=null
	}
};

dtmlXMLLoaderObject.prototype.loadXML=function(filePath,postMode,postVars,rpc)
{
	if (this.rSeed)filePath+=((filePath.indexOf("?")!=-1)?"&":"?")+"a_dhx_rSeed="+(new Date()).valueOf();
	this.filePath=filePath;
  
	if ((!_isIE)&&(window.XMLHttpRequest)) this.xmlDoc = new XMLHttpRequest();
	else
	{
		if (document.implementation && document.implementation.createDocument)
		{
			this.xmlDoc = document.implementation.createDocument("", "", null);
			this.xmlDoc.onload = new this.waitLoadFunction(this);
			this.xmlDoc.load(filePath);
			return
		}
		else this.xmlDoc = new ActiveXObject("Microsoft.XMLHTTP")
	};

	this.xmlDoc.open(postMode?"POST":"GET",filePath,this.async);
	if (rpc)
	{
		this.xmlDoc.setRequestHeader("User-Agent", "dhtmlxRPC v0.1 (" + navigator.userAgent + ")");
		this.xmlDoc.setRequestHeader("Content-type", "text/xml")
	}
	else if (postMode)this.xmlDoc.setRequestHeader('Content-type','application/x-www-form-urlencoded');
	
	this.xmlDoc.onreadystatechange=new this.waitLoadFunction(this);
	this.xmlDoc.send(null||postVars)
};

dtmlXMLLoaderObject.prototype.destructor=function()
{
	this.onloadAction=null;
	this.mainObject=null;
	this.xmlDoc=null;
	return null
};

function callerFunction(funcObject,dhtmlObject)
{
	this.handler=function(e)
	{
		if (!e)e=window.event;
		funcObject(e,dhtmlObject);
		return true
	};
	return this.handler
};

function getAbsoluteLeft(htmlObject)
{
	var xPos = htmlObject.offsetLeft;
	var temp = htmlObject.offsetParent;
	while (temp != null)
	{
		xPos += temp.offsetLeft;
		temp = temp.offsetParent
	};
	return xPos
};

function getAbsoluteTop(htmlObject)
{
	var yPos = htmlObject.offsetTop;
	var temp = htmlObject.offsetParent;
	while (temp != null)
	{
		yPos += temp.offsetTop;
		temp = temp.offsetParent
	};
	return yPos
};

function convertStringToBoolean(inputString)
{
	if (typeof(inputString)=="string") inputString=inputString.toLowerCase();
	switch(inputString)
	{
		case "1":
		case "true":
		case "yes":
		case "y":
		case 1:
		case true:
			return true;
			break;
		default: return false
	}
};

function getUrlSymbol(str)
{
	if (str.indexOf("?")!=-1) return "&"
	else return "?"
};

function dhtmlDragAndDropObject()
{
	if (window.dhtmlDragAndDrop)return window.dhtmlDragAndDrop;
	this.lastLanding=0;
	this.dragNode=0;
	this.dragStartNode=0;
	this.dragStartObject=0;
	this.tempDOMU=null;
	this.tempDOMM=null;
	this.waitDrag=0;
	window.dhtmlDragAndDrop=this;
	return this
};

dhtmlDragAndDropObject.prototype.removeDraggableItem=function(htmlNode)
{
	htmlNode.onmousedown=null;
	htmlNode.dragStarter=null;
	htmlNode.dragLanding=null
};

dhtmlDragAndDropObject.prototype.addDraggableItem=function(htmlNode,dhtmlObject)
{
	htmlNode.onmousedown=this.preCreateDragCopy;
	htmlNode.dragStarter=dhtmlObject;
	this.addDragLanding(htmlNode,dhtmlObject)
};

dhtmlDragAndDropObject.prototype.addDragLanding=function(htmlNode,dhtmlObject)
{
	htmlNode.dragLanding=dhtmlObject
};

dhtmlDragAndDropObject.prototype.preCreateDragCopy=function(e)
{
	if (window.dhtmlDragAndDrop.waitDrag)
	{
		window.dhtmlDragAndDrop.waitDrag=0;
		document.body.onmouseup=window.dhtmlDragAndDrop.tempDOMU;
		document.body.onmousemove=window.dhtmlDragAndDrop.tempDOMM;
		return false
	};

	window.dhtmlDragAndDrop.waitDrag=1;
	window.dhtmlDragAndDrop.tempDOMU=document.body.onmouseup;
	window.dhtmlDragAndDrop.tempDOMM=document.body.onmousemove;
	window.dhtmlDragAndDrop.dragStartNode=this;
	window.dhtmlDragAndDrop.dragStartObject=this.dragStarter;
	document.body.onmouseup=window.dhtmlDragAndDrop.preCreateDragCopy;
	document.body.onmousemove=window.dhtmlDragAndDrop.callDrag;
	
	if ((e)&&(e.preventDefault))
	{
		e.preventDefault();
		return false
	};
	return false
};

dhtmlDragAndDropObject.prototype.callDrag=function(e)
{
	if (!e)e=window.event;
	dragger=window.dhtmlDragAndDrop;
	if ((e.button==0)&&(_isIE)) return dragger.stopDrag();
	if (!dragger.dragNode)
	{
		dragger.dragNode=dragger.dragStartObject._createDragNode(dragger.dragStartNode,e);
		if (!dragger.dragNode)return dragger.stopDrag();
		dragger.gldragNode=dragger.dragNode;
		document.body.appendChild(dragger.dragNode);
		document.body.onmouseup=dragger.stopDrag;
		dragger.waitDrag=0;
		dragger.dragNode.pWindow=window;
		dragger.initFrameRoute()
	};
	if (dragger.dragNode.parentNode!=window.document.body)
	{
		var grd=dragger.gldragNode;
		if (dragger.gldragNode.old)grd=dragger.gldragNode.old;
		grd.parentNode.removeChild(grd);
		var oldBody=dragger.dragNode.pWindow;
		if (_isIE)
		{
			var div=document.createElement("Div");
			div.innerHTML=dragger.dragNode.outerHTML;
			dragger.dragNode=div.childNodes[0]
		}
		else dragger.dragNode=dragger.dragNode.cloneNode(true);
		
		dragger.dragNode.pWindow=window;
		dragger.gldragNode.old=dragger.dragNode;
		document.body.appendChild(dragger.dragNode);
		oldBody.dhtmlDragAndDrop.dragNode=dragger.dragNode
	};

	dragger.dragNode.style.left=e.clientX+15+(dragger.fx?dragger.fx*(-1):0)+(document.body.scrollLeft||document.documentElement.scrollLeft)+"px";
	dragger.dragNode.style.top=e.clientY+3+(dragger.fy?dragger.fy*(-1):0)+(document.body.scrollTop||document.documentElement.scrollTop)+"px";
	if (!e.srcElement) var z=e.target;
	else z=e.srcElement;
	dragger.checkLanding(z,e)
};

dhtmlDragAndDropObject.prototype.calculateFramePosition=function(n)
{
	if (window.name)
	{
		var el =parent.frames[window.name].frameElement.offsetParent;
		var fx=0;
		var fy=0;
		while (el)
		{
			fx += el.offsetLeft;
			fy += el.offsetTop;
			el = el.offsetParent
		};
		if ((parent.dhtmlDragAndDrop))
		{
			var ls=parent.dhtmlDragAndDrop.calculateFramePosition(1);
			fx+=ls.split('_')[0]*1;
			fy+=ls.split('_')[1]*1
		};

		if (n)return fx+"_"+fy;
		else this.fx=fx;
		this.fy=fy
	};
	return "0_0"
};

dhtmlDragAndDropObject.prototype.checkLanding=function(htmlObject,e)
{
	if ((htmlObject)&&(htmlObject.dragLanding))
	{
		if (this.lastLanding)this.lastLanding.dragLanding._dragOut(this.lastLanding);
		this.lastLanding=htmlObject;
		this.lastLanding=this.lastLanding.dragLanding._dragIn(this.lastLanding,this.dragStartNode,e.clientX, e.clientY,e);
		this.lastLanding_scr=(_isIE?e.srcElement:e.target)
	}
	else
	{
		if ((htmlObject)&&(htmlObject.tagName!="BODY")) this.checkLanding(htmlObject.parentNode,e);
		else
		{
			if (this.lastLanding)this.lastLanding.dragLanding._dragOut(this.lastLanding,e.clientX, e.clientY,e);
			this.lastLanding=0;
			if (this._onNotFound)this._onNotFound()
		}
	}
};

dhtmlDragAndDropObject.prototype.stopDrag=function(e,mode)
{
	dragger=window.dhtmlDragAndDrop;
	if (!mode)
	{
		dragger.stopFrameRoute();
		var temp=dragger.lastLanding;
		dragger.lastLanding=null;
		if (temp) temp.dragLanding._drag(dragger.dragStartNode,dragger.dragStartObject,temp,(_isIE?event.srcElement:e.target))
	};
	dragger.lastLanding=null;
	if ((dragger.dragNode)&&(dragger.dragNode.parentNode==document.body)) 
		dragger.dragNode.parentNode.removeChild(dragger.dragNode);
	dragger.dragNode=0;
	dragger.gldragNode=0;
	dragger.fx=0;
	dragger.fy=0;
	dragger.dragStartNode=0;
	dragger.dragStartObject=0;
	document.body.onmouseup=dragger.tempDOMU;
	document.body.onmousemove=dragger.tempDOMM;
	dragger.tempDOMU=null;
	dragger.tempDOMM=null;
	dragger.waitDrag=0
};

dhtmlDragAndDropObject.prototype.stopFrameRoute=function(win)
{
	if (win)window.dhtmlDragAndDrop.stopDrag(1,1);
	for (var i=0;i<window.frames.length;i++)
		if ((window.frames[i]!=win)&&(window.frames[i].dhtmlDragAndDrop))
			window.frames[i].dhtmlDragAndDrop.stopFrameRoute(window);
	if ((parent.dhtmlDragAndDrop)&&(parent!=window)&&(parent!=win))
		parent.dhtmlDragAndDrop.stopFrameRoute(window)
};

dhtmlDragAndDropObject.prototype.initFrameRoute=function(win,mode)
{
	if (win)
	{
		window.dhtmlDragAndDrop.preCreateDragCopy();
		window.dhtmlDragAndDrop.dragStartNode=win.dhtmlDragAndDrop.dragStartNode;
		window.dhtmlDragAndDrop.dragStartObject=win.dhtmlDragAndDrop.dragStartObject;
		window.dhtmlDragAndDrop.dragNode=win.dhtmlDragAndDrop.dragNode;
		window.dhtmlDragAndDrop.gldragNode=win.dhtmlDragAndDrop.dragNode;
		window.document.body.onmouseup=window.dhtmlDragAndDrop.stopDrag;
		window.waitDrag=0;
		if (((!_isIE)&&(mode))&&((!_isFF)||(_FFrv<1.8)))
			window.dhtmlDragAndDrop.calculateFramePosition()
	};
	if ((parent.dhtmlDragAndDrop)&&(parent!=window)&&(parent!=win))
		parent.dhtmlDragAndDrop.initFrameRoute(window);
	for (var i=0;i<window.frames.length;i++)
		if ((window.frames[i]!=win)&&(window.frames[i].dhtmlDragAndDrop))
	window.frames[i].dhtmlDragAndDrop.initFrameRoute(window,((!win||mode)?1:0))
};

var _isFF=false;
var _isIE=false;
var _isOpera=false;
var _isKHTML=false;
var _isMacOS=false;
if (navigator.userAgent.indexOf('Macintosh')!= -1) _isMacOS=true;
if ((navigator.userAgent.indexOf('Safari')!= -1)||(navigator.userAgent.indexOf('Konqueror')!= -1)) _isKHTML=true;
else if (navigator.userAgent.indexOf('Opera')!= -1)
{
	_isOpera=true;
	_OperaRv=parseFloat(navigator.userAgent.substr(navigator.userAgent.indexOf('Opera')+6,3))
}
else if(navigator.appName.indexOf("Microsoft")!=-1) _isIE=true;
else
{
	_isFF=true;
	var _FFrv=parseFloat(navigator.userAgent.split("rv:")[1])
};

function isIE()
{
	if(navigator.appName.indexOf("Microsoft")!=-1)
		if (navigator.userAgent.indexOf('Opera')== -1)
			return true;
	return false
};

dtmlXMLLoaderObject.prototype.doXPath = function(xpathExp,docObj)
{
	if ((_isOpera)||(_isKHTML)) return this.doXPathOpera(xpathExp,docObj);
	if(_isIE)
	{
		if(!docObj)if(!this.xmlDoc.nodeName)docObj = this.xmlDoc.responseXML
		else docObj = this.xmlDoc;
		return docObj.selectNodes(xpathExp)
	}
	else
	{
		var nodeObj = docObj;
		if(!docObj)
		{
			if(!this.xmlDoc.nodeName)
			{
				docObj = this.xmlDoc.responseXML
			}
			else
			{
				docObj = this.xmlDoc
			}
		};

		if(docObj.nodeName.indexOf("document")!=-1)
		{
			nodeObj = docObj
		}
		else
		{
			nodeObj = docObj;
			docObj = docObj.ownerDocument
		};

		var rowsCol = new Array();
		var col = docObj.evaluate(xpathExp, nodeObj, null, XPathResult.ANY_TYPE,null);
		var thisColMemb = col.iterateNext();
		while (thisColMemb)
		{
			rowsCol[rowsCol.length] = thisColMemb;
			thisColMemb = col.iterateNext()
		};
		return rowsCol
	}
};

function _dhtmlxError(type,name,params)
{
	if (!this.catches)this.catches=new Array();
	return this
};

_dhtmlxError.prototype.catchError=function(type,func_name)
{
	this.catches[type]=func_name
};

_dhtmlxError.prototype.throwError=function(type,name,params)
{
	if (this.catches[type])return this.catches[type](type,name,params);
	if (this.catches["ALL"])return this.catches["ALL"](type,name,params);
	alert("Error type: " + arguments[0]+"\nDescription: " + arguments[1] );
	return null
};

window.dhtmlxError=new _dhtmlxError();

dtmlXMLLoaderObject.prototype.doXPathOpera = function(xpathExp,docObj)
{
	var z=xpathExp.replace(/[\/]+/gi,"/").split('/');
	var obj=null;
	var i=1;
	if (!z.length)return [];
	if (z[0]==".")obj=[docObj];
	else if (z[0]=="")
	{
		obj=this.xmlDoc.responseXML.getElementsByTagName(z[i].replace(/\[[^\]]*\]/g,""));
		i++
	}
	else return [];

	for (i; i<z.length;	i++) obj=this._getAllNamedChilds(obj,z[i]);
	if (z[i-1].indexOf("[")!=-1) obj=this._filterXPath(obj,z[i-1]);
	return obj
};

dtmlXMLLoaderObject.prototype._filterXPath = function(a,b)
{
	var c=new Array();
	var b=b.replace(/[^\[]*\[\@/g,"").replace(/[\[\]\@]*/g,"");
	for (var i=0; i<a.length; i++)
		if (a[i].getAttribute(b)) c[c.length]=a[i];
	
	return c
};

dtmlXMLLoaderObject.prototype._getAllNamedChilds = function(a,b)
{
	var c=new Array();
	if (_isKHTML)b=b.toUpperCase();
	for (var i=0; i<a.length; i++)
		for (var j=0; j<a[i].childNodes.length;	j++)
		{
			if (_isKHTML)
			{
				if (a[i].childNodes[j].tagName && a[i].childNodes[j].tagName.toUpperCase()==b)
				c[c.length]=a[i].childNodes[j]
			}
			else if (a[i].childNodes[j].tagName==b)c[c.length]=a[i].childNodes[j]
		};
	return c
};

function dhtmlXHeir(a,b)
{
	for (c in b)
		if (typeof(b[c])=="function") a[c]=b[c];
	return a
};

function dhtmlxEvent(el,event,handler)
{
	if (el.addEventListener)el.addEventListener(event,handler,false);
	else if (el.attachEvent)el.attachEvent("on"+event,handler)
};