function _$(v){
	return document.getElementById(v);
}

function UTCTimeDemo(){
	   var d, s = "";
	   var c = "";
	   d = new Date();
	   s += d.getUTCHours() + c;
	   s += d.getUTCMinutes() + c;
	   s += d.getUTCSeconds() + c;
	   s += d.getUTCMilliseconds();
	   return(s);
} 

function isSsnString (ssn)
{
	var re=/^[a-z][\w-.#]*[a-z]$/i;
	if(re.test(ssn))
		return true;
	else
		return false;
}

function checkEmail(email){
 var pattern=/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
 if(pattern.exec(email))
		return true;
	else
		return false;
}

function get_time(){
	return new Date().getTime();
}

var queryString;
function setQueryString(frm){
	queryString="";
	var numberElements = frm.elements.length;
	for(var i=0;i<numberElements;i++){
		if(i< numberElements-1){
			queryString += frm.elements[i].name+"="+encodeURIComponent(frm.elements[i].value)+"&";
		}else{
			queryString += frm.elements[i].name+"="+encodeURIComponent(frm.elements[i].value);
		}
	}
}

function chg_checkcode(){
	$("#captcha_s").attr("src","/captcha/visual-captcha.htm?"+get_time());
}