ok, heres some sample code that demonstrates the problem.
if i click the button in firefox, the first option disappears.
if i click the button in chrome, nothing happens, or rather if i inspect the first option, it does have the attribute style='display:none' but the option itself on the html page is not hidden.

<form>

<select>

<option>1</option>

<option>2</option>

<option>3</option>

</select>

<input type=button onclick=document.getElementsByTagName('option')[0].style.display='none' value=hide option 1>

</form>

why doesn't this work in chrome?