/**
 * Functions to support the tree view of nodes in the Content Manager Admin scree
 * 
 * 
 */

function stopEvent(e, stopDefault) {
		if (e.stopPropagation) e.stopPropagation();  //DOM 2
		else e.cancelBubble = true; //IE
		if (stopDefault) {
			if (e.preventDefault) e.preventDefault(); //DOM 2
			else e.returnValue = false; //IE
		}
	}

function nodeSelect(e, id) {
	if (!e) e= window.event; //IE Event Model
	stopEvent(e, true);
 	
 }

 function doNodeClick(e,id) {
 	if (!e) e= window.event; //IE Event Model
 	
 	stopEvent(e, true);
 	var children = document.getElementById("children"+id);
 	var expander = document.getElementById("expander"+id);
 	if (children.style.display== "block"){
 		children.style.display="none";
 		expander.innerHTML = "<img src='media/images/icons/node_plus.png' alt='+'>";
 	} else {
 		children.style.display="block";
 		expander.innerHTML = "<img src='media/images/icons/node_minus.png' alt='-'>";
 	}	
 }
 
 function expandTree(nodeid){
 	var e = document.getElementById(nodeid);
 	var parent = e.parentNode;
 	while (parent.id != 0) {
 		parent.style.display = "block";
 		parent = parent.parentNode;
 	}
 }