drop down changes pick sets

[hantz]

i got 5 sets of 20 pickboxes...that's mean i got 5 groups in each group 20 players...

i'm i search of a script that when one of the 5 groups will be choosen with a dropdown list, a list of all players will apear and there will be option to pich each one of them...with no limit...

somebody?:)

[hantz]

<SCRIPT LANGUAGE=javascript>
<!--
function OnChange(dropdown)
{
var myindex = dropdown.selectedIndex
var baseURL= "<%=ScriptName%>?<%=ListName%>="
top.location.href = baseURL + dropdown.options[myindex].value;

return true;
}
//-->
</SCRIPT>