_doPostback Not Working After Deploy

Hi All,

I have use linked graph in multiple place. using below approach.

<set value='9' link='javascript:RequestStatusupServiceDeskRequestsMonthWise(10)'/>
This approach used in different kinds of graph such as PieChart, MSLineChart, 3DBarChart etc.

then use below code in aspx page.
<script>
function RequestStatusupServiceDeskRequestsMonthWise(val) {
alert('hello');
__doPostBack('<%= upServiceDeskRequestsMonthWise.UniqueID %>', 'Request$' + val);
}
</script>
I'm using Literal asp control for generating graph.

This is working fine in localhost before publishing.
But when I publish on our development server then alert('hello') message is showing but not postback to server.