hi im trying to get something working that when you place the mouse over a photo it opens a larger one on top. i found some code on the web but cannot get it to work.

i've taken a look with the javascript debugger in IE and can see where its crashing. can someome take a look and see if they can point me in the right direction. I really need to learn javascript a bit more but a tthe moment i'm too busy doing some php / mysql stuff....