var loadedImages  = new Array();

var swappedImages = new Array();



function LoadImages ()

{

    var i, j, k;

    if (document.images) {

        k = loadedImages.length;

        for (i in LoadImages.arguments) {

            for (j in LoadImages.arguments[i]) {

                loadedImages[k] = new Image;

                loadedImages[k].src = j;

                k++;

            }

        }

    }

}



function SwapImage (imgName, imgSrc)

{

    var x, i;

    if ((x = document.images[imgName]) != null) {

        i = swappedImages.length;

        swappedImages[i] = new Image;

        swappedImages[i].name = x.name;

        swappedImages[i].src = x.src;

        x.src = imgSrc;

    }

}



function SwapImgRestore ()

{

    var i, x;

    if (document.images) {

        while (i = swappedImages.shift()) {

            x = document.images[i.name];

            x.src = i.src;

        }

    }

}







var mainNavImages = new Array(

    'images/plan_n.gif', 'images/plan_h.gif',

    'images/essn_n.gif', 'images/essn_h.gif',

    'images/menu_n.gif', 'images/menu_h.gif',

    'images/reci_n.gif', 'images/reci_h.gif',

    'images/crft_n.gif', 'images/crft_h.gif',

    'images/ffun_n.gif', 'images/ffun_h.gif'

);



var planNavImages = new Array(

    'images/pm01_n.gif', 'images/pm01_h.gif', 'images/pm01_pn.gif', 'images/pm01_ph.gif',

    'images/pm02_n.gif', 'images/pm02_h.gif', 'images/pm02_pn.gif', 'images/pm02_ph.gif',

    'images/pm03_n.gif', 'images/pm03_h.gif', 'images/pm03_pn.gif', 'images/pm03_ph.gif',

    'images/pm04_n.gif', 'images/pm04_h.gif', 'images/pm04_pn.gif', 'images/pm04_ph.gif',

    'images/pm05_n.gif', 'images/pm05_h.gif', 'images/pm05_pn.gif', 'images/pm05_ph.gif',

    'images/pm06_n.gif', 'images/pm06_h.gif', 'images/pm06_pn.gif', 'images/pm06_ph.gif',

    'images/pm07_n.gif', 'images/pm07_h.gif', 'images/pm07_pn.gif', 'images/pm07_ph.gif',

    'images/pm08_n.gif', 'images/pm08_h.gif', 'images/pm08_pn.gif', 'images/pm08_ph.gif'

);