<!--
function isValidEmail(addr)
{
	var s = new String(addr);
	var bValid = false;	
	try{
		if (s!="")
			bValid = s.match(/\b(^(\S+@).+((\.com)|(\.net)|(\.edu)|(\.mil)|(\.gov)|(\.org)|(\.us)|(\.biz)|(\.info)|(\.tv)|(\.co.uk)|(\.ws)|(\..{2,2}))$)\b/gi);
	}catch(ex){}
	return bValid;	
}
function openPopup(url, h, w)
{
	if(isNull(url)){return;}
	var sProps = "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=1";
	if(!isNull(h) && !isNull(w) && !isNaN(h) && !isNaN(w)){sProps += ",width=" + w + ",height=" + h;}
	else{sProps += ",width=550,height=500";}
	var s = window.open(url,"win",sProps);
}
function isNull(str)
{
	if (str == null){return true;}
	var s = new String(str);
	if (s == "undefined"){return true;}
	else if (s == ""){return true;}
	else{return (s.length<=0);}
}
//-->