IE javascript error.

Hi

I am using 6.x-3.0-beta5

And when I use this I get the error :

SCRIPT5007: Unable to get value of the property 'match': object is null or undefined
homebox.js?z, line 86 character 5

Only on IE 7/8/9

if ($(this).parent('.homebox-column-wrapper').attr('style').match(/width: 100%/i) == null) {
      $(this).height('auto');
      maxHeight = Math.max($(this).height(), maxHeight);
    }

Thanks.

EDIT: Fixed patch below.