var ns4;
ns4 = navigator.appName
if(ns4 == "Netscape") { ns4=true; } else { ns4=false; };

var layerRef = (ns4) ? "document" : "document.all";
var styleRef = (ns4) ? "" : ".style";

var showNav = 0;
var imageDir = '/images/';

function swap_over(textimg, description) {
	if(document.images)  {
	if(textimg != '') {document[textimg].src = imageDir + textimg + '_on.png';}
	window.status = description;
	}
}
function swap_out(textimg) {
	if(document.images)  {
	if(textimg != '') {document[textimg].src = imageDir + textimg + '.png';}
	window.status = '';
	}
}

function showDiv(divid) {
   if (document.layers)
   {
   		document.layers[divid].visibility="show";
		document.layers[divid].style="block";
	}	
   else 
   {
   		document.getElementById(divid).style.visibility="visible";
		document.getElementById(divid).style.display="block";
	}
}

function hideDiv(divid) {
   if (document.layers) 
   {
   		document.layers[divid].visibility="hide";
		document.layers[divid].display="none";
		
		
	}
   else 
   {
   		document.getElementById(divid).style.visibility="hidden";
		document.getElementById(divid).style.display="none";
	}	
}

function hideAllIds(){
	var ids=new Array('aspendiv0','aspendiv1','aspendiv2','aspendiv3');
	//loop through the array and hide each element by id
	for (var i=0;i<ids.length;i++){
		hideDiv(ids[i]);
	}		  
}