Q303 How can I force all characters to be uppercase before the user submits the form?

<SCRIPT LANGUAGE="JavaScript"><!--
function convert() {
    document.myForm.myText1.value = document.myForm.myText1.value.toUpperCase();
    document.myForm.myText2.value = document.myForm.myText2.value.toUpperCase();
}
//--></SCRIPT>

<FORM NAME="myForm" onSubmit="convert()">
<INPUT TYPE="TEXT" NAME="myText1">
<INPUT TYPE="TEXT" NAME="myText2">
<INPUT TYPE="SUBMIT">
</FORM>