function popwin(page,width,height)
{
	var popup;
	var w = width;
	var h = height;			
	var t =  (window.screen.height-h)/2;
	var l = (window.screen.width-w)/2;

	popup = window.open(page,'page','width='+ w +',height='+ h +',top='+ t +',left='+ l + ",scrollbars=yes");
	popup.focus();
	return;
}

function IsEmail(emailAddress) 
{
    var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
    return re.test(emailAddress);
}