// precache all 'off' button images
var offImgMainMenu = new Array();
offImgMainMenu[0] = new Image(160,51);
offImgMainMenu[1] = new Image(160,51);
offImgMainMenu[2] = new Image(160,51);
offImgMainMenu[3] = new Image(160,51);
offImgMainMenu[4] = new Image(160,51);
offImgMainMenu[5] = new Image(160,51);
offImgMainMenu[6] = new Image(160,51);

// off image array -- set 'off' image path for each button
offImgMainMenu[0].src = "images/aboutUsOff.jpg";
offImgMainMenu[1].src = "images/agPoolsOff.jpg";
offImgMainMenu[2].src = "images/igPoolsOff.jpg";
offImgMainMenu[3].src = "images/serviceOff.jpg";
offImgMainMenu[4].src = "images/poolAddInsOff.jpg";
offImgMainMenu[5].src = "images/pokerOff.jpg";
offImgMainMenu[6].src = "images/slotsOff.jpg";

// precache all 'on' button images
var onImgMainMenu = new Array();
onImgMainMenu[0] = new Image(160,51);
onImgMainMenu[1] = new Image(160,51);
onImgMainMenu[2] = new Image(160,51);
onImgMainMenu[3] = new Image(160,51);
onImgMainMenu[4] = new Image(160,51);
onImgMainMenu[5] = new Image(160,51);
onImgMainMenu[6] = new Image(160,51);

// off image array -- set 'off' image path for each button
onImgMainMenu[0].src = "images/aboutUsOn.jpg";
onImgMainMenu[1].src = "images/agPoolsOn.jpg";
onImgMainMenu[2].src = "images/igPoolsOn.jpg";
onImgMainMenu[3].src = "images/serviceOn.jpg";
onImgMainMenu[4].src = "images/poolAddInsOn.jpg";
onImgMainMenu[5].src = "images/pokerOn.jpg";
onImgMainMenu[6].src = "images/slotsOn.jpg";

// functions that swap images & status bar
function imageOn(imgName,imgNum) {
  if (document.images) {
    document.images[imgName].src = onImgMainMenu[imgNum].src;
  };
}

function imageOff(imgName,imgNum) {
  if (document.images) {
    document.images[imgName].src = offImgMainMenu[imgNum].src;
  };
}