var ie4 = document.all && navigator.userAgent.indexOf("Opera")==-1;
var ns6 = document.getElementById && !document.all;
var ns4 = document.layers;
//if (document.cookie) alert(document.cookie);
//alert(window.history.length);

var lastwin=null, lastwin2=null, lastcaller=null, lastcaller2=null, lastcombotype=null;

function checkBrowser(fvar) {
	var AgntUsr=navigator.userAgent.toLowerCase();
	var DomYes=document.getElementById?1:0;
	var NavYes=AgntUsr.indexOf('mozilla')!=-1&&AgntUsr.indexOf('compatible')==-1?1:0;
	var ExpYes=AgntUsr.indexOf('msie')!=-1?1:0;
	var Opr=AgntUsr.indexOf('opera')!=-1?1:0;
	var Opr6orless=window.opera && navigator.userAgent.search(/opera.[1-6]/i)!=-1 //DynamicDrive.com added code
	var DomNav=DomYes&&NavYes?1:0;
 	var DomExp=DomYes&&ExpYes?1:0;
	var Nav4=NavYes&&!DomYes&&document.layers?1:0;
	var Exp4=ExpYes&&!DomYes&&document.all?1:0;
	var PosStrt=(NavYes||ExpYes)&&!Opr6orless?1:0;
	if (fvar==null)
		return DomYes+"|"+NavYes+"|"+ExpYes+"|"+Opr+"|"+Opr6orless+"|"+DomNav+"|"+DomExp+"|"+Nav4+"|"+Exp4+"|"+PosStrt+"|"+AgntUsr;
	fvar.value = DomYes+"|"+NavYes+"|"+ExpYes+"|"+Opr+"|"+Opr6orless+"|"+DomNav+"|"+DomExp+"|"+Nav4+"|"+Exp4+"|"+PosStrt+"|"+AgntUsr;
	return true;
}