/**
 * called by top-left nav.
 * shows/hides the ">" char for onmouseout, onmouseover events.
 */
function topnavToggle(id){
	var obj = document.getElementById(id);
	obj.style.visibility = obj.style.visibility == "visible" ? "hidden" : "visible";
}


//dhtml functions
//checks browser type
function lib_bwcheck(){ 
 this.ver=navigator.appVersion
 this.agent=navigator.userAgent
 this.dom=document.getElementById?1:0
 this.opera5=(navigator.userAgent.indexOf("Opera")>-1 && document.getElementById)?1:0
 this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0; 
 this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
 this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
 this.ie=this.ie4||this.ie5||this.ie6
 this.mac=this.agent.indexOf("Mac")>-1
 this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
 this.ns4=(document.layers && !this.dom)?1:0;
 this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
 return this
}
var bw=lib_bwcheck()


if(bw.mac)
{
	document.write ('<link href="/assets/styles/mac.css" rel="stylesheet" type="text/css" media="all">');
}
else
{
	document.write ('<link href="/assets/styles/ie.css" rel="stylesheet" type="text/css" media="all">');
}