function ajaxCall(url, data, fnSuccess, dataType, fnFailure)
{
    if (!fnFailure)
    {
        fnFailure = function(jqXhr)
        {
            var lastDitchHtml = window.getCriticalErrorDialog("An error occurred during the ajax call.");
            window.showCeebox(lastDitchHtml, 120, 350);
        };
    }

    var a = $('<a>', { href : url })[0];

    var startTime = getTimestampMilliseconds();

    $.ajax({
        cache : false,
        async : false,
        url : url,
        type : 'POST',
        dataType : dataType,
        data : data,
        success : fnSuccess,
        error : fnFailure
    });

    var endTime = getTimestampMilliseconds();
    var duration = endTime - startTime;

    window.ga('send', 'timing', 'AjaxCall', a.pathname, duration);
}

function getTimestampMilliseconds()
{
    if (window.performance)
    {
        return window.performance.now();
    }
    else
    {
        return new Date().getTime();
    }
}

window.ga('send', {
hitType : 'timing',
timingCategory : 'AjaxCall',
timingVar : a.pathname,
timingValue : duration});

window.ga('send', {
'hitType' : 'timing',
'timingCategory' : 'AjaxCall',
'timingVar' : a.pathname,
'timingValue' : duration});