function validateAndSubmit()
{
   if ((document['trademark']['firstname'].value == ''))
   {
     alert("Please include your name.");
   }
   else if (document['trademark']['home'].value == '')
   {
     alert("Please include your phone number.");
   }
   else if (! (document['trademark']['agree'].checked))
   {
     alert("Please check the 'I agree' box at bottom before submitting");
   }
   else
   {
//      alert("looking good");
      document['trademark'].submit();
   }
}
<!--
document.write('<INPUT TYPE="button" VALUE=" Send Information " onclick="validateAndSubmit();">');
// --></FONT>