$(document).ready(function(){
    $('a').each(function(){
        var link = $(this)[0].href;

        var pdfFiles = /\.(pdf)$/i;
        var imgFiles = /\.(jpg|gif|png)$/i;
        var allFiles = /\.(pdf|doc*|xls*|ppt*|jpg|gif|png|zip|mp3|mp4|mov)$/i;
        var action = '';
        var _onclick = new String($(this).attr('onclick'));
		
        //remove onclick pagetrack event from links
        if(_onclick.indexOf('pageTracker') != -1)
        {
            $(this).removeAttr('onclick');
        }
		
        //check to make sure link is not external
        if ((!link.match(/^https?\:/i)) || (link.match(document.domain)))
        {
            //if link leads to a download, we listen to the click event of that link
            //All Files event is guranteed to be tracked at this point
            if(link.match(allFiles))
            {
                $(this).click(function() {
                    action = 'Link Click Capture';
					
                    //if it's a pdf file and not from downloads directory
                    if(link.match(pdfFiles) && link.indexOf('/downloads') == -1)
                    {
                        trackIt('PDF Downloads', action, link, 1);
                    }
                    //if it's a pdf file or image file and from downloads directory or peerx directory
                    else if((link.match(pdfFiles) || link.match(imgFiles)) && (link.indexOf('/downloads') != -1 || link.indexOf('/peerx/cool-stuff') != -1))
                    {
                        trackIt('N4T Downloads', action, link, 1);
                    }
					
                    //catch all event
                    trackIt('All Files', action, link, 1);
                });
            }
        }
    });
});
function trackIt(category, action, link, opt)
{
//    pageTracker._trackEvent(category, action, link, 1);
    _gaq.push(['_trackEvent', category, action, link]);
}