var objCats;
var objLinks;

window.onload = function(){
	objCats = document.getElementById("categories").getElementsByTagName("li");
	objLinks = document.getElementById("links");
}

function closeAll(){
	for(var i=0;i<objCats.length;i++) objCats[i].className = "";
	for(var i=0;i<objCats.length;i++) document.getElementById("link"+i).className = "closed";
	document.getElementById("links").className = "hide";
}

function toggle(num,toggleStat){
	toggleStat = (toggleStat=='off' || (!toggleStat && objLinks.className=="show")) ? false : true;
	closeAll();
	if(!toggleStat) return;
	objCats = document.getElementById("categories").getElementsByTagName("li");
	objCats[num].className = "selected";
	document.getElementById("link"+num).className = "open";
	objLinks.className = "show";
}