var rollovers_count = 7;

var filenames_off = new Array;

filenames_off[0] = "img/menu_off_01.jpg";
filenames_off[1] = "img/menu_off_02.jpg";
filenames_off[2] = "img/menu_off_03.jpg";
filenames_off[3] = "img/menu_off_04.jpg";
filenames_off[4] = "img/menu_off_05.jpg";
filenames_off[5] = "img/menu_off_06.jpg";
filenames_off[6] = "img/menu_off_07.jpg";
filenames_off[7] = "img/menu_off_08.jpg";
var filenames_on = new Array;

filenames_on[0] = "img/menu_on_01.jpg";
filenames_on[1] = "img/menu_on_02.jpg";
filenames_on[2] = "img/menu_on_03.jpg";
filenames_on[3] = "img/menu_on_04.jpg";
filenames_on[4] = "img/menu_on_05.jpg";
filenames_on[5] = "img/menu_on_06.jpg";
filenames_on[6] = "img/menu_on_07.jpg";
filenames_on[7] = "img/menu_on_08.jpg";
var images_off = new Array;
var images_on  = new Array;

var images_loaded = false;



function rollover_on(AElementID, AImageNo)
{
    if (images_loaded) {
        var el = document.getElementById(AElementID);
        el.src = filenames_on[AImageNo];
    }
}

function rollover_off(AElementID, AImageNo)
{
    if (images_loaded) {
        var el = document.getElementById(AElementID);
        el.src = filenames_off[AImageNo];
    }
}


function preload()
{
    for (i = 0; i < rollovers_count; i++) {
    
        images_off[i] = new Image();
        images_off[i].src = filenames_off[i];
        
        images_on[i] = new Image();
        images_on[i].src = filenames_on[i];
        
    }
    
    images_loaded = true;      
}