Drop down lMenu(Javascript) hiding my Drop down list

Question

Hello Friends,

I've a dropdown menu(Javascript) above a dropdownlist(ASP.NET web control). But when i raise my mouse over the Javascript menu then the menu is hidden behind the dropdown list ........ Can anybody suggest me to solve this problem so that my JavaScript menu cann't be hidden behind the drop down list....................



I know that Z-Index can solve my problem but the problem is still a problem since i don't know how to set Z-Index for the server control like "Drop down List" if u know how to plz let me know too

Thnxxxxxxx.........