PNG fix for ie6

Hello. I have a website with transparent PNGs and a javascript .js menu. To fix the PNGs so that they work in IE6, i am using the following code which works well: [login to view URL] BUT... that stops my menu displaying the sub menus which needs to be fixed. Its a simple fix for someone who knows javascript coding - please contact me asap - fix will be $30 max - less if possible. Thanks Rakesh