userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
function findElement(n,ly) {
        if (browserVers < 4)                return document[n];
        var curDoc = ly ? ly.document : document;
        var elem = curDoc[n];
        if (!elem) {
                for (var i=0; i < curDoc.layers.length; i++) {
                        elem = findElement(n,curDoc.layers[i]);
                        if (elem) return elem;
                }
        }
        return elem;
}

function newImage(arg) {
        if (document.images) {
                rslt = new Image();
                rslt.src = arg;
                return rslt;
        }
}

function changeImages() {
        if (document.images) {
                var img;
                for (var i=0; i < changeImages.arguments.length; i += 2) {
                        img = null;
                        if (document.layers) {
                                img = findElement(changeImages.arguments[i],0);
                        }
                        else {
                                img = document.images[changeImages.arguments[i]];
                        }
                        if (img) {
                                img.src = changeImages.arguments[i+1];
                        }
                }
        }
}


var preloadFlag = false;
function preloadImages() {
        if (document.images) {
                more_over = newImage("siteimg/menu/more_over.gif");
                more_down = newImage("siteimg/menu/more_down.gif");
                crea_over = newImage("siteimg/menu/crea_over.gif");
                crea_down = newImage("siteimg/menu/crea_down.gif");
                real_over = newImage("siteimg/menu/real_over.gif");
                real_down = newImage("siteimg/menu/real_down.gif");
                rent_over = newImage("siteimg/menu/rent_over.gif");
                rent_down = newImage("siteimg/menu/rent_down.gif");
                refe_over = newImage("siteimg/menu/refe_over.gif");
                refe_down = newImage("siteimg/menu/refe_down.gif");
                our_over = newImage("siteimg/menu/our_over.gif");
                our_down = newImage("siteimg/menu/our_down.gif");
                visi_over = newImage("siteimg/menu/visi_over.gif");
                visi_down = newImage("siteimg/menu/visi_down.gif");
                down_over = newImage("siteimg/menu/down_over.gif");
                down_down = newImage("siteimg/menu/down_down.gif");
                proj_over = newImage("siteimg/menu/proj_over.gif");
                proj_down = newImage("siteimg/menu/proj_down.gif");
                //soft = newImage("siteimg/menu/soft.gif");
                soft_over = newImage("siteimg/menu/soft_over.gif");
                soft_down = newImage("siteimg/menu/soft_down.gif");
                preloadFlag = true;
        }
}

function MM_openBrWindow(theURL,winName,features) {
        window.open(theURL,winName,features);
}