function makeRequest(url) {
        var httpRequest;

        if (window.XMLHttpRequest) { // Mozilla, Safari, ...
            httpRequest = new XMLHttpRequest();
        } 
        else if (window.ActiveXObject) { // IE
            try {
                httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
                } 
                catch (e) {
                           try {
                                httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
                               } 
                             catch (e) {}
                          }
                                       }

        if (!httpRequest) {
            alert('Please turn on Javascript in your web browser for this page to function correctly.');
            return false;
        }
        httpRequest.open("GET", url, true);
        httpRequest.send("");

    }

function logClickEvent(whichEvent, dealer)
	{
	if (dealer != "NULL");
		makeRequest("ajax/logClickEvent.php?event=" + whichEvent +"&dealer=" + dealer);
	}	

function logModelImpression(model)
	{
	makeRequest("ajax/logModelImpression.php?model=" + model);
	}