i searched TF for the preloading at found this link.
But the problem is that the user control generates the menu for the whole site so it loads everything from images to link url to even tooltip dynamically.
So i cant write a static script or i resort to generating the javascript dynamically too (wont it slow down to generate it dynamically too?)??? The menu bar is very fast thanks to caching of the menu etc, but cant do the same for images of the javascript!