var preloadFlag = false;

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    {
    mapsSt = newImage("images/nav1/nav1_r04_c2.gif");
    mapsOv = newImage("images/nav1/nav1_r04_c2_f2.gif");
    visitorSt = newImage("images/nav1/nav1_r05_c2.gif");
    visitorOv = newImage("images/nav1/nav1_r05_c2_f2.gif");
    eventsSt = newImage("images/nav1/nav1_r06_c2.gif");
    eventsOv = newImage("images/nav1/nav1_r06_c2_f2.gif");
    beachesSt = newImage("images/nav1/nav1_r07_c2.gif");
    beachesOv = newImage("images/nav1/nav1_r07_c2_f2.gif");
    linksSt = newImage("images/nav1/nav1_r08_c2.gif");
    linksOv = newImage("images/nav1/nav1_r08_c2_f2.gif"); 
    helpSt = newImage("images/nav1/nav1_r09_c2.gif");
    helpOv = newImage("images/nav1/nav1_r09_c2_f2.gif");
 
    upSt = newImage("images/index_upbutton_over.gif");
    upOv = newImage("images/index_upbutton_under.gif");
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