When viewing in IE8 the page finishes with Error on page. The error details below.

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; BTRS124307; chromeframe/31.0.1650.63; .NET CLR 1.0.3705; .NET4.0C; .NET CLR 1.1.4322; Media Center PC 4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0E)
Timestamp: Thu, 26 Dec 2013 19:47:40 UTC

Message: Invalid argument.
Line: 36
Char: 5
Code: 0
URI: http://www.laarrl.org/drupal/sites/all/themes/laarrl_responsive/js/pngfi...