IE/Safari issues

IE/Safari issues

Hey, everyone...

I'm working on a slider and it works fine in Firefox, but not IE/Safari.

Here's the link:

http://ihrtn.com/Gallery/paintings.html

And here's the original jquery slideshow that I was basing it all on:

http://www.leigeber.com/2008/12/javascript-slideshow/

Can anyone help me out with this?

Thank you so much!