expires = new Date();
expires.setTime (expires.getTime() + 24 * 60 * 60 * 150 * 1000);
function set(){
 
if(document.dataform.Email.value.indexOf(" ") >= 0)
{
	alert("Please enter your email-id without any white space character.");
	document.dataform.Email.focus();
	return (false);
}
if ( (document.dataform.Email.value.indexOf("@") == -1) || (document.dataform.Email.value.indexOf(".") == -1) )
{
	alert("Please enter a valid email-id");
	document.dataform.Email.focus();
	return (false);
}
 
 
BeforeAtRate = document.dataform.Email.value.substring(0,document.dataform.Email.value.indexOf("@"));
AfterAtRate = document.dataform.Email.value.substring(document.dataform.Email.value.indexOf("@")+1,document.dataform.Email.value.length);
 
if (AfterAtRate.indexOf(".") == -1)
{
	alert("Please enter a valid email-id");
	document.dataform.Email.focus();
	return (false);
}
 
middle = AfterAtRate.substring(0, AfterAtRate.indexOf("."));
last = AfterAtRate.substring(AfterAtRate.indexOf(".") + 1,AfterAtRate.length);
 
if (BeforeAtRate.length == 0 || middle.length == 0 || last.length == 0)
{
	alert("Please enter a valid email-id");
	document.dataform.S_email.focus();
	return (false);
}
}