function valid()
{
var email =/[-a-zA-Z0-9_\.]+@[-a-zA-Z0-9]+\.[-a-zA-Z0-9\.]+/;
var eflag = document.emailgrabber.email.value.match(email); 
if(eflag!=document.emailgrabber.email.value)
 {
  alert("Enter Valid Email");
  document.emailgrabber.email.focus();
  document.emailgrabber.email.select();
  return false;
 }
else
{
window.open("mailaction.asp?email="+document.emailgrabber.email.value+"&msg="+document.emailgrabber.msg.value+"&abc="+document.emailgrabber.abc.value,"hello","width=300,height=200,resizable=no,scrollbars=no");
return false;
}
}