function form_validator(theForm)
{
 
  if (theForm.fullname.value == "")
  {
    alert("Please enter your name.");
    theForm.fullname.focus();
    return (false);
  }
 
  if (theForm.fullname.value.length < 3)
  {
    alert("Please enter at least 3 characters in the \"Name\" field.");
    theForm.fullname.focus();
    return (false);
  }
 
  if (theForm.tele.value == "")
  {
    alert("Please enter telephone.");
    theForm.tele.focus();
    return (false);
  }
 
  if (theForm.tele.value.length < 6)
  {
    alert("Please enter at least 6 characters in the \"Telephone\" field.");
    theForm.tele.focus();
    return (false);
  }
 
  if (theForm.email.value == "")
  {
    alert("Please enter your email.");
    theForm.email.focus();
    return (false);
  }
 
  if (theForm.email.value.length < 5)
  {
    alert("Please enter at least 5 characters in the \"email\" field.");
    theForm.email.focus();
    return (false);
  }
 
  if (theForm.arivdate.value == "")
  {
    alert("Please enter your travel date.");
    theForm.arivdate.focus();
    return (false);
  }
 
  if (theForm.arivdate.value.length < 5)
  {
    alert("Please enter at least 5 characters in the \"Travel Date\" field.");
    theForm.arivdate.focus();
    return (false);
  }
 
  if (theForm.divers.value == "")
  {
    alert("Please enter the number of divers in your party.");
    theForm.divers.focus();
    return (false);
  }
 
  
  return (true);
}