All Javascripts not working in ie9 !?

Works perfectly in all browsers except IE9, many codes doesn't work.

For example here - "Related Topics" code.

Any ideas?

Ah, yes. Is there a solution for this? Many functions does not work.

It works fine with Internet Explorer 7 and 8, but not with 9.

Its likely that you have just one javascript on your forum that is either incompatible with IE9 or the author didn't bother to support it.

Either way the link you provided works fine on IE to me.
What Javascript is not working?

To forumotion technicians,

I think i found the reason...
There is error with this original code:

viewtopic_body

Code:

var multiquote_img_off = '{JS_MULTIQUOTE_IMG_OFF}', multiquote_img_on = '{JS_MULTIQUOTE_IMG_ON}', _atr = '{JS_DIR}addthis/', _ati = '{PATH_IMG_FA}addthis/'{ADDTHIS_LANG}, addthis_localize = { share_caption: "{L_SHARE_CAPTION}", email: "{L_EMAIL}", email_caption: "{L_EMAIL_CAPTION}", favorites: "{L_SHARE_BOOKMARKS}", print: "{L_PRINT}", more: "{L_MORE}" };
$(function(){
   _atc.cwait = 0;
   $('.addthis_button').mouseup(function(){
      if ($('#at15s').css('display') == 'block') {
         addthis_close();
         addthis_close();
      }
   });
});
//]]>

I get this error with Internet Explorer 9 (In Console mode): SCRIPT5009: '_atc' is undefined

due to this error, all javascripts not working in IE 9.

So, I removed this line: (_atc.cwait = 0;). and now, all Javascript codes working fine on all browsers and on IE 9 too.