function validate_tellafriend()
{
	
if (document.friend.yourname.value=="")
{
	alert("Please Enter Your Name");
	document.friend.yourname.focus();
	document.friend.yourname.select();
	return false;
}

if( document.friend.youremail.value != '')
{
var e_mail=  document.friend.youremail.value;

if(e_mail.indexOf('.')< 0 || e_mail.indexOf('@') < 0)
  {
	alert("Please Enter Valid email-id");
	document.friend.youremail.select();
	document.friend.youremail.focus();

	return false;	
		

   }
 }

else
{
alert("Please Enter Email ");
document.friend.youremail.select();
document.friend.youremail.focus();
return false;

}
if (document.friend.friendname.value=="")
{
	alert("Please Enter Your Friend Name");
	document.friend.friendname.focus();
	document.friend.friendname.select();
	return false;
}

if( document.friend.friendemail.value != '')
{
var e_mail=  document.friend.friendemail.value;

if(e_mail.indexOf('.')< 0 || e_mail.indexOf('@') < 0)
  {
	alert("Please Enter Valid email-id");
	document.friend.friendemail.select();
	document.friend.friendemail.focus();
	return false;	
		

   }
 }

else
{
alert("Please Enter Email ");
document.friend.friendemail.select();
document.friend.friendemail.focus();
return false;

}

if (document.friend.comments.value=="")
{
	alert("Please Enter Comments");
	document.friend.comments.focus();
	document.friend.comments.select();
	return false;
}

document.friend.action="tellfriend_mail.php";
document.friend.submit();
return true;
}