mainMenuOnImages = new Array();
    mainMenuOffImages = new Array();
        mainMenuOnImages[1] = new Image();
    mainMenuOnImages[1].src = "images/p11.gif";
    mainMenuOffImages[1] = new Image();
    mainMenuOffImages[1].src = "images/p1.gif";
        mainMenuOnImages[2] = new Image();
    mainMenuOnImages[2].src = "images/p22.gif";
    mainMenuOffImages[2] = new Image();
    mainMenuOffImages[2].src = "images/p2.gif";
        mainMenuOnImages[3] = new Image();
    mainMenuOnImages[3].src = "images/p33.gif";
    mainMenuOffImages[3] = new Image();
    mainMenuOffImages[3].src = "images/p3.gif";
        mainMenuOnImages[4] = new Image();
    mainMenuOnImages[4].src = "images/p44.gif";
    mainMenuOffImages[4] = new Image();
    mainMenuOffImages[4].src = "images/p4.gif";
        mainMenuOnImages[5] = new Image();
    mainMenuOnImages[5].src = "images/p55.gif";
    mainMenuOffImages[5] = new Image();
    mainMenuOffImages[5].src = "images/p5.gif";
        mainMenuOnImages[6] = new Image();
    mainMenuOnImages[6].src = "images/p66.gif";
    mainMenuOffImages[6] = new Image();
    mainMenuOffImages[6].src = "images/p6.gif";
        mainMenuOnImages[7] = new Image();
    mainMenuOnImages[7].src = "images/p77.gif";
    mainMenuOffImages[7] = new Image();
    mainMenuOffImages[7].src = "images/p7.gif";
      
    function menuOver(id) {
        if (document.images) {
            document.getElementById("mn"+id).src = mainMenuOnImages[id].src;
        }
    }

    function menuOut(id) {
        if (document.images) {
            document.getElementById("mn"+id).src = mainMenuOffImages[id].src;
        }
    }