function Toggle(item) {
   obj=document.getElementById(item);
   visible=(obj.style.display!="none") 
   if (visible) {
	 obj.style.display="none";
   } else {
	  obj.style.display="block";
   }
}
function Show(item){
	obj=document.getElementById(item);
	obj.style.display="block";
}
function Hide(item){
	obj=document.getElementById(item);
	obj.style.display="none";
}

function confirm_deletion(id,page,label){
	var input_box=confirm("Are you sure you want to delete this "+label+"?");
	if (input_box==true){
		 window.location = page+"?delete="+id;
	} else {
		//do nothing
	}
}

/* nav */
function startList() {
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById("nav_list");
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					this.className+=" over";
				}
				node.onmouseout=function() {
					this.className=this.className.replace(" over", "");
				}
			}
		}
	}
}