Gallery Does Not Display in Firefox 10

I have inherited a website where the gallery displays fine in Internet Explorer 9 but not at all in Firefox 10.

The link as follows:

Any ideas why?
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Meir RivkinConnect With a Mentor Full stack Software EngineerCommented:
document.all doesn't  work in firefox, change all instances to getElementById.
Meir RivkinFull stack Software EngineerCommented:
also i strongly recommend on firebug as a tool to debug and validate your website on firefox.
Dave BaldwinFixer of ProblemsCommented:
Only IE supports "document.all".  Firefox Error Console says about your page:

Error: document.all is not a function
Source File:
Line: 99

'document.all' needs to be replaced with the appropriate document.getElementById(id) to work in all browsers since about 1998.
canuWebmasterAuthor Commented:
Thanks for your help!
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