var g_filePKey=null;
 
function makeRequest(tgtPage,requesttext){
        // Mozilla
        if (window.XMLHttpRequest) {
                var oXML=new XMLHttpRequest();
        } else {
        // IE
                var oXML=new ActiveXObject("Microsoft.XMLHTTP");
        }
        
        oXML.open("POST",tgtPage,false);
//              alert("req" + requesttext);
        oXML.send(requesttext);

        var theResponse = oXML.responseText;
//              alert("resp" + theResponse);

        // Generic Webservice Error handling...
	var parser=new DOMParser();
	var doc=parser.parseFromString(theResponse,"text/xml");
	if ((doc.documentElement.getAttribute("success")!="true")
	   && (doc.documentElement.getAttribute("fileformat")==null)
	   && (doc.documentElement.getAttribute("errorclass")!="AppError")) {
		alert("Problem: (" + doc.documentElement.getAttribute("success") + ")\n" + theResponse);
	}
        return(theResponse);
}


function loadMap(filePKey) {
	setBusyWait();
	window.scrollTo(0,0);
	var xmlDoc=document.implementation.createDocument('','X',null);		
	xmlDoc.documentElement.setAttribute("function","OPENFILE");
	xmlDoc.documentElement.setAttribute("filepkey",filePKey);
	var txtResp=makeRequest('requestTarget.php',xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	g_filePKey=filePKey;
	dataTools.setPKey(doc.documentElement.getAttribute("nextpkey"));
	deleteAllRootNodes();
	for (var i=0;i<doc.documentElement.firstChild.childNodes.length;i++){
		rootNode[i]=new node().fromXML(doc.documentElement.firstChild.childNodes[i]);
	}
	
	// Freelinks need to be loaded when it's guaranteed that all nodes are loaded.
	// otherwise they have nothing to link to...
	createFreeRelations(doc.documentElement);
	
	unsetBusyWait();
}

// Traverse the tree and draw freeRelations
function createFreeRelations(docEle){
	var allChilds=docEle.childNodes;
	for (var i=0;i<allChilds.length;i++){
		var theChild=allChilds[i];
		if (theChild.childNodes.length>0){
			createFreeRelations(theChild);
		}
		if (theChild.nodeName=="NODEREL"){
			if (theChild.getAttribute("relationtype")!="main"){
				var newNodeRel=new nodeRel().fromXML(theChild);
				newNodeRel.redraw();
			}
		}
	}
}

function saveMap(description) {
	setBusyWait();
	var xmlDoc=document.implementation.createDocument('','ALL',null);
	xmlDoc.documentElement.setAttribute("fileformat","1");
	xmlDoc.documentElement.setAttribute("nextpkey",dataTools.getNewPKey());
	xmlDoc.documentElement.setAttribute("function","SAVEFILE");
	xmlDoc.documentElement.setAttribute("filepkey",g_filePKey);
	xmlDoc.documentElement.setAttribute("description",description);
	var nodeSets=xmlDoc.createElement("NODESET");
	for (var i=0;i<rootNode.length;i++){
		nodeSets.appendChild(xmlDoc.importNode(rootNode[i].toXML(),true));
	}

	xmlDoc.documentElement.appendChild(nodeSets);
	
	var txtResp=makeRequest("requestTarget.php",xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	g_filePKey=doc.documentElement.getAttribute("filepkey");
	unsetBusyWait();
	return(xmlDoc);
}

function deleteMap(filePKey){
	var xmlDoc=document.implementation.createDocument('','X',null);
	xmlDoc.documentElement.setAttribute("function","DELETEFILE");
	xmlDoc.documentElement.setAttribute("filepkey",filePKey);
	var txtResp=makeRequest("requestTarget.php",xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	return(xmlDoc);
}

function getIconList() {
	var xmlDoc=document.implementation.createDocument('','X',null);		
	xmlDoc.documentElement.setAttribute("function","GETICONLIST");
	var txtResp=makeRequest('requestTarget.php',xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	return(document.importNode(doc.firstChild,true));
}

function getFileList() {
	var xmlDoc=document.implementation.createDocument('','X',null);		
	xmlDoc.documentElement.setAttribute("function","LISTFILES");
	var txtResp=makeRequest('requestTarget.php',xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	return(document.importNode(doc.firstChild,true));
}

function openFileSelector() {
	var fsControl=new fileSelectorControl(getFileList());
	document.getElementById("body").appendChild(fsControl);
	fsControl.style.position="absolute";
	fsControl.style.top="100px";
 	dragNDrop.activateForObject(fsControl);
}

function tokenLoginUser(){
	var mail=dataTools.getCookie("autoLoginMail");
	var loginToken=dataTools.getCookie("autoLoginToken");

	var xmlDoc=document.implementation.createDocument('','X',null);		
	xmlDoc.documentElement.setAttribute("function","TOKENLOGIN");
	xmlDoc.documentElement.setAttribute("mail",mail);
	xmlDoc.documentElement.setAttribute("token",loginToken);
	var txtResp=makeRequest('requestTarget.php',xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	return(doc.documentElement.getAttribute("success")=="true");
	
}

function loginUser(mail,password,isAutoLogin) {
	var xmlDoc=document.implementation.createDocument('','X',null);		
	xmlDoc.documentElement.setAttribute("function","LOGIN");
	xmlDoc.documentElement.setAttribute("mail",mail);
	xmlDoc.documentElement.setAttribute("password",password);
	xmlDoc.documentElement.setAttribute("isautologin",(isAutoLogin)?"1":"0");
	var txtResp=makeRequest('requestTarget.php',xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	if (isAutoLogin) {
		var loginToken=doc.documentElement.getAttribute("autologintoken");
		dataTools.setCookie("autoLoginToken",loginToken,10000);
		dataTools.setCookie("autoLoginMail",mail,10000);
	}
	return(doc.documentElement.getAttribute("success")=="true");
}
function logOutUser(){
	var xmlDoc=document.implementation.createDocument('','X',null);		
	xmlDoc.documentElement.setAttribute("function","LOGOUT");
	xmlDoc.documentElement.setAttribute("autologintoken",dataTools.getCookie("autoLoginToken"));
	dataTools.setCookie("autoLoginToken","",-1);
	dataTools.setCookie("autoLoginMail","",-1);
	var txtResp=makeRequest('requestTarget.php',xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	window.location='login.php';
	return(doc.documentElement.getAttribute("success")=="true");
}

function optinUser(mail,password) {
	var xmlDoc=document.implementation.createDocument('','X',null);		
	xmlDoc.documentElement.setAttribute("function","OPTINUSER");
	xmlDoc.documentElement.setAttribute("mail",mail);
	xmlDoc.documentElement.setAttribute("password",password);
	var txtResp=makeRequest('requestTarget.php',xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	return(doc.documentElement.getAttribute("success")=="true");
}

function mailPassword(mail) {
	var xmlDoc=document.implementation.createDocument('','X',null);		
	xmlDoc.documentElement.setAttribute("function","MAILPASSWORD");
	xmlDoc.documentElement.setAttribute("mail",mail);
	var txtResp=makeRequest('requestTarget.php',xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	return(doc.documentElement.getAttribute("success")=="true");
}

function confirmOptin(token) {
	var xmlDoc=document.implementation.createDocument('','X',null);		
	xmlDoc.documentElement.setAttribute("function","CONFIRMOPTIN");
	xmlDoc.documentElement.setAttribute("token",token);
	var txtResp=makeRequest('requestTarget.php',xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	return(doc.documentElement.getAttribute("success")=="true");
}

function changePassword(mail,newPass,oldPass,token) {
	var xmlDoc=document.implementation.createDocument('','X',null);		
	xmlDoc.documentElement.setAttribute("function","CHANGEPASSWORD");
	xmlDoc.documentElement.setAttribute("mail",mail);
	xmlDoc.documentElement.setAttribute("newpass",newPass);
	xmlDoc.documentElement.setAttribute("oldpass",oldPass);
	xmlDoc.documentElement.setAttribute("token",token);
	var txtResp=makeRequest('requestTarget.php',xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	return(doc.documentElement.getAttribute("success")=="true");
}

function updateUserProfile(name,mail,password) {
	var xmlDoc=document.implementation.createDocument('','X',null);		
	xmlDoc.documentElement.setAttribute("function","UPDATEUSERPROFILE");
	xmlDoc.documentElement.setAttribute("mail",mail);
	xmlDoc.documentElement.setAttribute("password",password);
	xmlDoc.documentElement.setAttribute("name",name);
	var txtResp=makeRequest('requestTarget.php',xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	return(doc.documentElement.getAttribute("success")=="true");
}

function deleteAllRootNodes() {
	for (var i=rootNode.length-1;i>=0;i--){
		rootNode[i].erase();
	}
}

function getUserInfo(attribute) {
	var xmlDoc=document.implementation.createDocument('','X',null);		
	xmlDoc.documentElement.setAttribute("function","GETUSERINFO");
	var txtResp=makeRequest('requestTarget.php',xmlDoc);
	var parser=new DOMParser();
	var doc=parser.parseFromString(txtResp,"text/xml");
	return(doc.documentElement.getAttribute(attribute));
}