// That code snippet belongs to Swaminarayan Temple Sydney - http://sydneytemple.org

  var linksXML; //the linksXML tree structure
  var menuItems; //all the descendants of the menu
 $(function(){
 	$("#menuSearchBox").defaultText();
 	$.ajax({
 		url:"links.xml",
 		dataType:"xml",
 		success:function(xml){
 			linksXML = $(xml).find("links > link")[0];
 			menuItems = $(xml).find("link");
 			var linkParent = findLinkParent(linksXML);
 			loadElems(linkParent,true);
 			//console.debug(document.location.search);
 		}
 	});
 });
 
 function findLinkParent(links){
 	var search = window.location.search;
	for(var i=0; i < menuItems.length; i++){
		if($(menuItems[i]).attr("href")==search){
			return menuItems[i].parentNode;
		}
	}
 	return links;	
 }
 
 function loadElems(links,nextAnimate){
 	var childs = $('#childs');
 	childs.empty();//empty the children
 	loadHeads(links);
 	
 	//console.debug(links);
 	$(links).children("link").each(function(index){
 		var name = $(this).attr("name");
 		var href = $(this).attr("href");
 		var child;
 		var nextArrow;
 		var curElem = this;
 		
 		if(href){
	 		child = $("<li class='link'><a href=\"" + href + "\">" +name+"</a></li>");
 		}else{
 			child = $("<li>"+name+"</li>");
	 		child.click(function(){
		 		loadElems(curElem,true);
		 	});
 		}
 		
	 	
 		childs.append(child);
  		child.css({position:"relative",opacity:0});
 		if(nextAnimate){
	 		child.css({left:50}).animate({opacity:1,left:0},500);
 		}else{
	 		child.css({left:-50}).animate({opacity:1,left:0},500);
 		}
 		
 		//console.debug(name);
 	});

 	
 }
 
 function loadHeads(links){
 	var heads = $("#heads");
 	var currentElem = $("<li class='parent'>"+$(links).attr("name")+"</li>");
 	heads.empty().prepend(currentElem);
  	
	while( links!=linksXML){
	  	links = links.parentNode;
	 	currentElem = $("<li>"+$(links).attr("name")+"</li>");
	 	currentElem[0].link = links; 
	 	currentElem.click(function(){
	 		//console.debug(this);
	 		loadElems(this.link,false);
	 	});
	 	
  		heads.prepend(currentElem);
	}
  	
 }
 
 function searchMenu(searchStr){
 	searchStr = searchStr.toLowerCase();
 	$menuSearchResults = $("#menuSearchResults");
 	$menuSearchResults.empty();
 	
 	if(!searchStr) return;//nothing to search
 	
 	var count = 0;
 	menuItems.each(function(){
 		$this = $(this);
 		var link = this;
 		
 		var name = $this.attr("name").toLowerCase();//case insensitive
 		var index = name.indexOf(searchStr);
 		if(index != -1 && (index == 0 || name.charAt(index-1) == ' ')){//word boundary or first letter
	 		 var href = $this.attr('href');
	 		 if(href){
		 		child = $("<li class='link'><a href=\"" + href + "\">" +$this.attr("name")+"</a></li>");
	 		}else{
	 			child = $("<li>"+$this.attr("name")+"</li>");
			 	child.click(function(){
			 		loadElems(link,false);
			 	});
	 		}
		 	$menuSearchResults.append(child);
		 	if(++count >=10) return false;//load max 10 results
 		}
 	});
 }