/*
 * 
 * @author: jack@softwe.net
 * @version
 * @copyright
 */
function verifyEmail(obj) 
{ 
	var email = obj; 
	var pattern = /^[_\.0-9a-z-]+@[0-9a-z-]+(\.[a-z]{2,4})+$/i; 
	flag = pattern.test(email); 
	if(flag) 
	{  
		return true; 
	} 
	else 
	{ 
		return false; 
	} 
}
function redirecturl()
{
	url=(arguments[0])?arguments[0]:'about:blank';
	target=(arguments[1])?arguments[1]:'self';
	if(target.toLowerCase()=='self')
	{
		self.location.href=url;
	}
	else
	{
		top.window[target].location.href=url;
	}
}
function isEmpty(theobj)
{
	var obj=document.getElementById(theobj);
	return ((obj.value == null)||(obj.value == "")||(obj.value == "undefined")||(obj.value.length == 0)); 
}