if (document.images)
    {
    preload1= new Image(57,67); 
    preload1.src="images/menu/menu_01_a.jpg"; 

    preload2= new Image(58,67); 
    preload2.src="images/menu/menu_02_a.jpg"; 

    preload3= new Image(58,67); 
    preload3.src="images/menu/menu_03_a.jpg"; 

    preload4= new Image(58,67); 
    preload4.src="images/menu/menu_04_a.jpg"; 

    preload5= new Image(57,67); 
    preload5.src="images/menu/menu_05_a.jpg"; 
    }

    function displayInfo(element) {
    myElement = document.getElementById("menu_info");
    infoTxt = "";
    switch(element) {
        case 1: infoTxt = "<strong>Kurse: <\/strong>";
                infoTxt += "Unsere Kurse im Überblick";
                myElement.innerHTML = infoTxt;
                break;
        case 2: infoTxt = "<strong>E-Learning: <\/strong>";
                infoTxt += "Unser ausgezeichnetes eLearning System";
                myElement.innerHTML = infoTxt;
                break;
        case 3: infoTxt = "<strong>Anmeldung: <\/strong>";
                infoTxt += "Schnell und einfach f&uuml;r einen Kurs anmelden";
                myElement.innerHTML = infoTxt;
                break;
        case 4: infoTxt = "<strong>Service: <\/strong>";
                infoTxt += "Wir bieten was wir versprechen. Entdecken Sie wie einfach Lernen sein kann.";
                myElement.innerHTML = infoTxt;
                break;
        case 5: infoTxt = "<strong>Kontakt: <\/strong>";
                infoTxt += "Adresse. Kontakt. Anfahrt. Rückrufservice. Mehr.";
                myElement.innerHTML = infoTxt;
                break;
    }
    myElement.style.visibility = "visible";
    var src = "images/menu/menu_0"+element+"_a.jpg";
    var id = "menuimg_"+element;
    document.getElementById(id).src = src;
    }

    function hideInfo(element) {
    var id = "menuimg_"+element;
    var src = "images/menu/menu_0"+element+"_i.jpg";
    //alert(src);
    document.getElementById(id).src = src;
    document.getElementById("menu_info").style.visibility = "hidden";
    }