this js only works in IE

to make certain dropdown attributes not display on shopping cart, i add the code Form.elements['attrib-3'].value="";

it works in IE, but it doesn't work in Firefox
what do i modify the code to make it work both in IE and Firefox?

i add the code Form.elements['attrib-3'].value="";
Where are you adding this and where is your site?
What version of ZenCart? etc etc

kobra:

Where are you adding this and where is your site?
What version of ZenCart? etc etc

tpl product info localhost 1.39h

attrib-3 is id of the select box

attrib-3 is dropdown id
A drodown is not part of the default code

If you have added a module for a drop menu you might need to visit the contributed add ons area and not the general area that is for default code issues

kobra:

A drodown is not part of the default code

If you have added a module for a drop menu you might need to visit the contributed add ons area and not the general area that is for default code issues

it s custom code that i add to product info page, will this thread be moved to contributed addons area or posted again to that area?

i add to tpl product info display file the code Form.elements['attrib-3'].value=""; to make certain dropdown attributes not display in shopping cart if adding products to cart.
the source of this dropdown:
<select id="attrib-3" name="id[3]">

i'm not sure where should i post this problem, what do i modify the js to make it work in Firefox? any help would be appreciated