function checkThis() {
   if (document.formxx.name.value=="") {
      alert ('Please enter your name. Thank You.')
	  return false
   }
   else if (document.formxx.tel.value=="") {
      alert ('Please enter your telephone number. Thank You.')
	  return false
   }
      else if (document.formxx.town.value=="") 
	  {
      alert ('Please enter your town. Thank You.')
	return false
}
   	else if(isNaN(document.formxx.tel.value))
		{
			alert("Please Enter Numbers Only In Your Telephone Number (Without Spaces).");
			return false;
		}
   return true
}