Hii MaxxaM!!
<script>
function sendToFrame(obj)
{
window.parent.SecondFrameName.sencondFrameFun(obj. value)
}
</script>
<select onchange="sendToFrame(this)" name='QuotaID'>
****
In ur second frame define function
<script>
function sencondFrameFun(value1)
{
alert(value1)
}
</script>
Hope this will help you,
Note:-this link can help you
http://p2p.wrox.com/topic.asp?TOPIC_ID=35884
Cheers :)
vinod