Why doesn't these links work in IE7?

I don't understand why I cannot click the tags on top in IE7 on this website

It says开发者_C百科 javascript error but I debugged with Firefox and I don't get any error...

Could you give me some help ?

Here is where it crashes on IE :

document.getElementById("").SetReturnValue(__flash__toXML("http://www.sanstitre.ch/drupal/sites/default/files/files/projects/WM 1976/videos/P1030297.flv","460","345")) );

document.getElementById("") returns null

You can try debug this problem with Internet Explorer Developer Toolbar http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=e59c3964-672d-4511-bb3e-2d5e1db91038 or Fiddler tool (see http://www.fiddler2.com/fiddler2/) which works as a proxy and can help also in the most of situation. At least you will see whether and what HTTP trafic IE send.

With fiddeler you will be able compare HTTP trafic in IE7 with the trafic in Firefox.