Replying to Non IE browsers

I know the dropdown menus don't work for non IE browsers, but the actual links since the top menu was rearranged, the links haven't changed, media takes you to literature, myns takes yout to media, etc. I don't know if this has been brought up before, I first noticed it when i was browsin on with linux and mozilla. So yea. I was looking at the javascript. It looks like an old ns check for browser on the drop down menus, this line

f7_v4=(parseInt(navigator.appVersion)>=4 && parseInt(navigator.appVersion)