/** 
 *  @author:    Danny Ng (http://www.dannytalk.com) 
 *  @date:      30/08/08 
 *  @updated:   26/09/08 
 *  @notes:     Free to use and distribute without altering this notice. Would appreciate a link back. 
 *  @usage:     Place the following code before the </body> tag and after <a href="http://www.dannytalk.com/tag/google/">google</a> analytics code, 
 * 
 *              <script type="text/javascript" src="<PATH-TO-SCRIPT>"></script> 
 *              <script type="text/javascript"> 
 *                  dtalk_ga.applyVirtualExits(); 
 *              </script> 
 */  
  
var dtalk_ga = {  
    applyVirtualExits: function() {  
        var trackPage = function(a)  
        {  
            var domain_name = document.location.toString().toLowerCase().split('/')[2];  
            var exit_domain = a.href.split('/')[2].toLowerCase();  
            if (domain_name.toLowerCase().indexOf(exit_domain) == -1)  
            {  
                if (typeof pageTracker != 'undefined')  
                    pageTracker._trackPageview('/exit/' + a.href);  
            }  
        };  
        var anchors = document.getElementsByTagName('a');  
        for (var i = 0; i < anchors.length; i++)  
        {  
            if (anchors[i].href && anchors[i].href != (document.location + '#'))  
            {  
                if (typeof anchors[i].onclick == 'undefined')  
                    anchors[i].onclick = function(e) {  
                        trackPage(this);  
                    };  
                else if (typeof anchors[i].onclick == 'function')  
                {  
                    var old_onclick = anchors[i].onclick;  
                    anchors[i].onclick = function(e) {  
                        old_onclick();  
                        trackPage(this);  
                    };  
                }  
            }  
        }  
    }  
};