function leonardo()
{
     mail_address = prompt('\r\nPlease Type Your Friends Email Address', '');

     if(mail_address != null)
     {     
          var foundat = mail_address.lastIndexOf("@");
          var founddot = mail_address.lastIndexOf(".");
          if(foundat != -1)
          {
               if (founddot != -1)
               {
                    self.location="mailto:" + mail_address + "?subject=World Champion Leonardo's Pedigree!&body=To view Leonardo's Pedigree please click the link to go to Radamantino Bolognese \n \n  http://www.radamantino.co.uk/pedigree-leonardo.htm";
               }
               else 
               {
                    alert('Sorry But Thats Not a Valid Email Address');
               }
          }
          else 
          {
               alert('Sorry But Thats Not a Valid Email Address');
          }
     }
}