function addZIndex(){

	if(!document.getElementById) return false;
	if(!document.getElementById('gigography')) return false;
	
	var gig = document.getElementById('gigography').childNodes;
	var z = 1000;
	//alert(gig.length);
	for(var i = 0; i< gig.length; i++){
		
		if(gig[i].nodeName.toLowerCase() == 'ul') {
			gig[i].style.zIndex = z;
			//gig[i].onclick = function(){alert(this.style.zIndex);}
			z--;
			
			var gigsub = gig[i].childNodes;
			for(var j = 0; j < gigsub.length; j++){
				
				if(gigsub[j].nodeName.toLowerCase() == 'li') {
					gigsub[j].style.zIndex = z;
					//gigsub[j].onclick = function(){alert(this.style.zIndex);}
					z--;
				}
			}
			
		}

	}
}