I have a radmenu on my page and it is working fine. But the problem is any control that I put on the page goes behind the radmenu, means radmenu comes in front of that control. Please see the attachment:
This is issue is occurs because of the Z-index problem of RadMenu.You need to set a higher z-index value to other control than RadMenu z-index value. Please have a look into the sample code snippet which works fine at my end.