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//General configuration



var sImageNone = sImagesPath + "none.gif";

var sImagePlus = sImagesPath + "plus.gif";

var sImageMinus = sImagesPath + "minus.gif";



//Styles

var sNodeLoadingClass = "BeingLoadedNode";

var sNodeClass = "TreeNode";



//Text

var sCancelLoading = "J© D-8G D7A' ...";



//Timeout during which node will be loaded

var timeOut = 60000;



//Selected node

var oSelNode;



//Curent loading node. Only one node can be being loading at one moment!*/

var beingLoadedNode;



//Current node counter. We use it for generation unique ID

var nodeId = 0;



//Init data and start loading root tree

function initPage(){

	oSelNode = null;

	//set beingLoadedNode to the tree container

	beingLoadedNode = document.getElementById("Tree");

	processLoading(sRootTree);	

}



//Load subtree into hidden frame

function processLoading(sTreeURL){	

	window.tocLoader.location = sTreeURL;

	//We will cancel loading of tree if it willn't have success during timeout

	//window.setTimeout("cancelLoadByTimeout('" + beingLoadedNode.id + "');", timeOut);

	

}



//Show hint [Loading...]

function showBeingLoadedNode(){

	var oDIV = beingLoadedNode.appendChild(document.createElement("div"));

	oDIV.className = sNodeLoadingClass;

	var oA = oDIV.appendChild(document.createElement("a"));

	oA.href = "#";

	oA.title = "'F51'A ..."

	oA.onclick = cancelLoad;	

	var	oText = oA.appendChild(document.createTextNode(sCancelLoading));

}



//Hide hint [Loading...]

function hideBeingLoadedNode(){	

	if (beingLoadedNode.childNodes.length>1){

		var oDIV = beingLoadedNode.childNodes[1];			

		beingLoadedNode.removeChild(oDIV); 

	}

}



//Cancel loading of node

function cancelLoadByTimeout(id){

	//Check if node is still  loaded

	if (beingLoadedNode!=null && beingLoadedNode.id==id){

		hideBeingLoadedNode();

		//Check whether its top container node

		if (beingLoadedNode.childNodes.length>0){

			beingLoadedNode.childNodes[0].childNodes[0].src = sImageNone;

			beingLoadedNode.childNodes[0].childNodes[0].onclick = null;

		}

		beingLoadedNode = null;	

		alert("9/E EHABJ* /1 ('1¯0'1PÌ 3'.*'1 /1.*J");			

	}

}



//This function handles OnClick event on hint [Loading...]

function cancelLoad(){

	hideBeingLoadedNode();

	//Check whether its top container node

	if (beingLoadedNode.childNodes.length>0){

		beingLoadedNode.childNodes[0].childNodes[0].src = sImagePlus;

	}

	beingLoadedNode = null;	

	return false;

}



//This function handle OnClick event on action image ([+] or [-]). 

//As parameter we pass id of associated node

function actionOnClick(id){

	var oNode = document.getElementById(id);

	

	//If node is already expanded we collapse it

	if (oNode.getAttribute("Expanded")=="true"){

		oNode.childNodes[1].style.display = "none";

		oNode.childNodes[0].childNodes[0].src = sImagePlus;

		oNode.setAttribute ("Expanded", "false")

	}

	//If node is collapsed we expand it

	else{

		//Show minus icon

		oNode.childNodes[0].childNodes[0].src = sImageMinus;		

		//If children nodes are already loaded, just expand it

		if (oNode.getAttribute("LoadedChildren")=="true"){

			oNode.childNodes[1].style.display = "block";

			oNode.setAttribute ("Expanded", "true")

		}

		 //Children nodes are not loaded yet, we need to load it

		else{

			//If the other nodes are loaded at the current time, we should stop it

			if (beingLoadedNode!=null){

				hideBeingLoadedNode();

			}

			//Set new current being loaded node

			beingLoadedNode = oNode;

			//Show loading node

			showBeingLoadedNode();		

			//loading subtree

			processLoading(beingLoadedNode.getAttribute("src"));

		}

	}

}



//These functions handle onMouseOver and onMouseOut events on the links of tree menu 

var sNormalColor = "white";

var sOverColor = "red";



function actionOnMouseOver(){

	var oSrc = window.event.srcElement;

	oSrc.style.color = sOverColor ;

	oSrc.style.cursor = "hand";

		

 }



function actionOnMouseOut(){

	var oSrc = window.event.srcElement;

	

	oSrc.style.color = sNormalColor;

	oSrc.style.cursor = "default";



}



//Build tree. This function is called from hidden frame with new downloaded data,

//which are passed in oData parameter



function buildTree(oData){

//Check whether loading was canceled

	if (beingLoadedNode!=null){

		hideBeingLoadedNode();

		//Get list of nodes		

		var oNodes = oData.nodes;

		if (oNodes.length==0){

			if (beingLoadedNode.childNodes.length>0){

				beingLoadedNode.childNodes[0].childNodes[0].src = sImageNone;

				beingLoadedNode.childNodes[0].childNodes[0].onclick = null;

				

			}

		}

		else{

			var oLI, oUL, oIMG, oA, oText, oNOBR, i;

			var sIcon, sName, sHref, sTarget, sSrc, sId;

			

			//Create container for child nodes

			oUL = beingLoadedNode.appendChild(document.createElement("ul"));	

			oUL.style.display="block";	

			//Run over nodes

			

			for (i=0;i<oNodes.length;i++){

				//Set obligatory values

				sIcon = oNodes[i].icon;

				sName =	oNodes[i].name;	



				sId = oNodes[i].id;

				if (sId == cId){

					sName = sName + " »" ;

					}

				

				//Set optional values

				if (oNodes[i].href!= null){

					sHref=oNodes[i].href;			

				}

				else{

					sHref="";					

				}

				if (oNodes[i].target!=null){

					sTarget=oNodes[i].target;

				}

				else{

					sTarget=""

				}

				//Create node

				oLI = oUL.appendChild(document.createElement("li"));	

				//Incerement unique node ID

				nodeId++;

				oLI.id = 'tn' + nodeId;



				//If src attribute is not empty, add custom attribute to the result node

				if (oNodes[i].src!=null){

					sSrc = oNodes[i].src;

				}

				else{

					sSrc = "";

				}

				oLI.setAttribute("src", sSrc);

				oNOBR = oLI.appendChild(document.createElement("nobr"));

				//Create action image [+], [-] [ ]

				oIMG = document.createElement("img");

				oIMG.border = 0;

				//If src attribute is not empty or amount of the child nodes is not equals zero

				if (sSrc!=""){

					//Sub nodes was not loaded and so not expanded

					oLI.setAttribute("LoadedChildren", "false");

					oLI.setAttribute("Expanded", "false");

					oIMG.src = sImagePlus;

					//Set action image event handler - dynamicaly assembly handler for

					//It should be like actionOnClick('tnXXXX')		

					oIMG.onclick = new Function("actionOnClick('tn" + nodeId + "')");	

				}		

				else{

					oIMG.src = sImageNone;

				}

				//Create icon image

				oIMG.width = 16;

				oIMG.height = 16;

				oIMG = oNOBR.appendChild(oIMG);		

				//Creation of icon image

				oIMG = document.createElement("img");

				//oIMG.border = 0;

				//oIMG.src = sImagesPath + sIcon + ".gif";

				//oIMG.width = 16;

				//oIMG.height = 16;		

				//oIMG = oNOBR.appendChild(oIMG);

				//Create link

								

				oA = document.createElement("a");

					oA.onclick = new Function("actionOnClick('tn" + nodeId + "')");

					oA.onmouseover = new Function("actionOnMouseOver()");

					oA.onmouseout =  new Function("actionOnMouseOut()");

				if (sHref!=""){

					//Combine full path from baseHref and relative path

					//If you want to use full pathes (not relative) just

					//assing to baseHref empty string

														

					oA.href = oData.baseHref + sHref;

				}

				if (sTarget!=""){

					oA.target = sTarget;		

				}

				oA.title = sName;		

				oA.className = "treenode";

				oA = oNOBR.appendChild(oA);



				oText = oA.appendChild(document.createTextNode(sName));

				

			}

			//Add custom attributes to resultNode which specifies whether node loaded children or not and 

			//whether is was expanded or not

			beingLoadedNode.setAttribute("Expanded", "true");	

		}

		beingLoadedNode.setAttribute("LoadedChildren", "true")

		beingLoadedNode = null;

	}

	

	if (nID > 0){

		beingLoadedNode = document.getElementById("tn" + nID);

		beingLoadedNode.setAttribute("Expanded", "false");

		actionOnClick("tn" + nID);

		}	



}