// You should save this javascript function as a file and call it as above, if you do make sure the path to recordVisit.php is set properly relative to the script.
function recordVisit(id){       
        var ajaxRequest;  // The variable that makes Ajax possible!
        
        try{
                // Opera 8.0+, Firefox, Safari
                ajaxRequest = new XMLHttpRequest();
        } catch (e){
                // Internet Explorer Browsers
                try{
                        ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
                } catch (e) {
                        try{
                                ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
                        } catch (e){
                                // Something went wrong
                                alert("Your browser broke!");
                                return false;
                        }
                }
        }
        // Create a function that will receive data sent from the server
        ajaxRequest.onreadystatechange = function(){
                if(ajaxRequest.readyState == 4){
                        // Comment out the following line if you don't want to see the javascript alert
                        // alert(ajaxRequest.responseText);
                }
        }
        
        // Which tab are we recording?
        var page = document.getElementById(id).innerHTML;
        
        // Hack to make sure we can re-use the AJAX request on the page
        var dynamic = "&dynamic=" + Math.floor(Math.random()*99999999999999999);
        var queryString = "?page=" + page;
        
        // Send the AJAX request off to the php loggin page...
        ajaxRequest.open("GET", "../includes/commontab/recordVisit.php" + queryString + dynamic, true);
        ajaxRequest.send(null); 
}