<Input> Problem in IE but not FF/Chrome. Javascript?

Hi again all, back with another hopefully easy question to fix.

Please check this out in Internet explorer:


I googled for the answer, but could not come up with a good response in terms of my own script on how to make the return code fields EXPAND to full length when pressed like they do in firefox and chrome.

Does anyone have a quick fix for this? It’s all dynamically loaded except for the first 10 fields (Which i might as well take out anyway), so I’m thinking I have to put something in the javascript somewhere, just no idea what. Thanks a lot!