changing standard gray buttons

[Petter Naess]

I'm not a programmer, so please excuse, but can the standard gray "Go"
button in JavaScript dropdowns be changed, ie. replaced with a button of
one's own choosing (or making)? I don't need mouseover or fancy effects,
I'd just like a more attractive button.
Here's text from my script - I assume reference to the button image would
have to go in there someplace. If I had a button called button.gif, how
would I fit it in?

<input type="button"
onClick="location =
document.form4.dd1.options
[document.form4.dd1.selectedIndex].value;"
value="GO;">

Many thanks, Petter Naess