I am showing Category and Sub category in a drop down box and I don't want the drop down value of the main category to be selected by any user.
So I applied disable="disabled"
and it works fine in Firefox, Chrome, and also IE8, but it is not working in IE6 and IE7.
my code:
<option value="test" disabled="disabled" >Test></option>
It seems this is a well documented problem with IE6/IE7.
A quick Google search revealed this potential workaround: http://www.goodercode.com/wp/disable-select-options-internet-explorer-jquery/