document.write('<div id="loading"><br /><h1>Please wait</h1><br /><img src="/css/loadingAnimation.gif" width="208" height="13" alt="loading" /><p>Calculating prices</p></div>');

function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
            if (oldonload) {
                oldonload();
            }
            func();
        }
    }
}

addLoadEvent(function() {
    document.getElementById("loading").style.display = "none";
});