function checkform ( form )
{
  if (form.qty.value == "") {
    alert( "Please enter a Quantity." );
    form.qty.focus();
    return false ;
  }
  if (form.service.value == "") {
    alert( "Please enter a Shipping Method." );
    form.service.focus();
    return false ;
  }
  if (form.first_name.value == "") {
    alert( "Please enter your First Name." );
    form.first_name.focus();
    return false ;
  }
  if (form.last_name.value == "") {
    alert( "Please enter your Last Name." );
    form.last_name.focus();
    return false ;
  }
  if (form.address1.value == "") {
    alert( "Please enter your Address." );
    form.address.focus();
    return false ;
  }
  if (form.city.value == "") {
    alert( "Please enter your City." );
    form.city.focus();
    return false ;
  }
  if (form.state.value == "") {
    alert( "Please enter your State." );
    form.state.focus();
    return false ;
  }
  if (form.zip.value == "") {
    alert( "Please enter your Zip Code." );
    form.zip.focus();
    return false ;
  }
		return true ;
}