//var xmlclient = false;
//xmlclient = new ActiveXObject("Msxml2.XMLHTTP");
function sendmail(emailid)
{
//	xmlclient.onreadystatechange = handler;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (!filter.test(emailid))
	{
		alert('Invalid email format. Please enter valid email id.');
		return false;
	}
	window.open("sendmail.php?email=" + emailid, '_sendmail','width=400,height=300, resizable=no');

//	xmlclient.open("GET", "sendmail.php?email=" + emailid, false);
//	xmlclient.send();
	//alert(xmlclient.responseText);
}