String.prototype.beginsWith = function(t, i) { if (i==false) { return 
(t == this.substring(0, t.length)); } else { return (t.toLowerCase() 
== this.substring(0, t.length).toLowerCase()); } } 

String.prototype.endsWith = function(t, i) { if (i==false) { return (t 
== this.substring(this.length - t.length)); } else { return 
(t.toLowerCase() == this.substring(this.length - 
t.length).toLowerCase()); } } 


$.WT = $.WT || {};
$(document).ready(function(){
    $('#supra-nav').click(function(e) { if (e.target.tagName === 'A') $.WT.trackNav(e.target, 'Top'); });
    $('#primary-nav').click(function(e) { if (e.target.tagName === 'A') $.WT.trackNav(e.target, 'Primary'); });
    $('#footer').click(function(e){ if(e.target.tagName === 'A') $.WT.trackNav(e.target, 'Footer');});
});


$.WT.trackNav = function(obj, type) {

    if ($(obj).attr('href') != 'undefined') {

        var url = new String($(obj).attr('href'));

        if (!url.beginsWith("javascript", true) && url.indexOf("WT.sp", 0) == -1) {

            if (url.indexOf("?", 0) == -1) {
                $(obj).attr('href', $(obj).attr('href') + '?WT.sp=' + type)
            }
            else {
                $(obj).attr('href', $(obj).attr('href') + '&WT.sp=' + type)
            }        
        }
    }   
};