Add an optgroup to dynamically generated dropdowns.

[Scooby08]

Would it be possible to break these dynamically generated options into optgroups?? Say "Group1" and "Group2"..

 

<script>
function setOptions(chosen) { 
var selbox = document.mainform.new_image; 
selbox.options.length = 0; 

if (chosen == "/") { 
	selbox.options[selbox.options.length] = new Option('<?=$imgname?>','<?=$image?>'); 
}
    
    if (chosen == "/test/") { 
	selbox.options[selbox.options.length] = new Option('<?=$imgname?>','<?=$image?>'); 
}
} 
</script>

[Psycho]

This page has an example: http://groups.google.co.ke/group/comp.lang.javascript/msg/011abc4a091f62c5