if (document.images) {
var guideUp = new Image(170,37)
guideUp.src = "images/navbar_btn_guide.jpg"

var guideOver = new Image(170,37)
guideOver.src = "images/navbar_btn_guide_.jpg"

var featuresUp = new Image(161,37)
featuresUp.src = "images/navbar_btn_features.jpg"

var featuresOver = new Image(161,37)
featuresOver.src = "images/navbar_btn_features_.jpg"

var photosUp = new Image(155,37)
photosUp.src = "images/navbar_btn_photos.jpg"

var photosOver = new Image(155,37)
photosOver.src = "images/navbar_btn_photos_.jpg"
}
function dm(msgStr) {
    window.status = msgStr;
    document.returnValue = true;
}
function di(id,name){
  if (document.images) document.images[id].src=eval(name+".src");
}