[jQuery] problem with using .each() in forms validation

[Mahmoud M. Abdel-Fattah]

I'm using .each () for form validation , with dynamic form elements,
and here's the JS function :

function validate_form() {
    $("select[id^='products']").each(function(){
       if(this.value == "0") {
            alert('MESSAGE1');
            document.getElementById(this.id).focus();
            return false;
       } else if(this.value==14 && document.getElementById
('address').value == "") {
            alert('MESSAGE2');
            document.getElementById('address').focus();
            return false;
       }
     });

     $("input[id^='amount']").each(function(){
       if(this.value == "" || this.value == "0" || this.value !=
parseInt(this.value)) {
            alert('MESSAGE3');
            document.getElementById(this.id).focus();
            return false;
       }
     });
}

and I add to the form tag :
onsubmit="validate_form(); return false;"


When I submit the form, the validation works fine BUT it doesn't STOP,
it continue to submit the data ALTHOUGH there's return false; !!

So, what's the problem ??

Thanks for your time,
Mahmoud M. Abdel-Fattah