# Javascript questions

**URL:** https://forum.kirupa.com/t/javascript-questions/227621
**Category:** web dev
**Created:** [May 31, 2007, 7:56pm UTC](https://forum.kirupa.com/t/javascript-questions/227621 "2007-05-31T19:56:40Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![camargo](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/camargo/32/1363_2.png) [@camargo](https://forum.kirupa.com/u/camargo)
#### Post date: [May 31, 2007, 7:56pm UTC](https://forum.kirupa.com/t/javascript-questions/227621/1 "2007-05-31T19:56:40Z")

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Hey there Kirupans!

Take a look at this: [http://www.wirelessinteractive.com/cbtest.php](http://www.wirelessinteractive.com/cbtest.php)

I’m creating a small application that builds cables for customers to order online. I have a quick question about the functionality, however.

The middle drop down box in each row represents a “Cable Type.” I need to make sure than when “CAT5” is selected in the 2nd drop down, that the other drop downs reset back to “-----” and gray themselves out so they cannot be changed.

How could I accomplish this?

Thanks in advance everyone! Cheers!