Java Script behaviour in different browsers

Question

On an entry form(MD) on the javascript handler onClick for
Insert button I have the following piece of Javascript:
if (document.forms(0).item(12).value==0)
var y=window.alert('No project selected');
So I am checking the value of a number field and if is zero , a
warning is shown.
The form is working properly on IE5 or 5.5 but not on some
Nescape browsers versions(4.6 and up).
Can anybody show me what is wrong and how can be corrected.
Thanks
Lawrence

Answer 1

If your item type is a combox box, you'll need to write your
JavaScript like this:
if (this.options[this.selectedIndex].value == 0)
alert('put message here');
You can also write it in pl/sql as:
htp.p('<SCRIPT LANGUAGE="JavaScript">
if (this.options[this.selectedIndex].value == 0)
alert('put message here');
</SCRIPT>');
Fran