function checkform (search_form)
{
	 if (search_form.zip.value.length<2)
	 {
      alert("Please enter your name")
      search_form.zip.focus()
       return false;
     } 	
	 
	
/*	if (appoint.mail.value.indexOf('@', 1) == -1 || appoint.mail.value.indexOf('.', appoint.mail.value.indexOf('@', 0)) == -1) 
	{
	alert("Email invalid") 
	appoint.mail.focus()
	return false;
	}*/

	return true ;
}