var selectedImage = -1;
var imagesSupport = document.images;
var menuImage = new Array();
var pageLoaded = false;

function preloadImgObject(inImgObj){
	img = new Image();
	img.src = inImgObj.normal.src;
	img.src = inImgObj.hilite.src;
	img.src = inImgObj.selected.src;
}

function preloadImages(){
	if(imagesSupport){
		var arLengte = menuImage.length;
		for(var i = 0;i<arLengte;i++){
			preloadImgObject(menuImage[i]);
		}
	}
}

function imageObj(inName, inNormalSrc, inHiliteSrc, inSelectSrc){
	if(imagesSupport){
		this.normal = new Image();
		this.hilite = new Image();
		this.selected = new Image();
		this.name = inName;
		this.normal.src = inNormalSrc;
		this.hilite.src = inHiliteSrc;
		this.selected.src = inSelectSrc;
	}
}

function makeSelected(inImgArrayNum){
	if(pageLoaded && imagesSupport){
		if(inImgArrayNum != selectedImage){
			if(selectedImage != -1)	{
				prevSelected = menuImage[selectedImage].name;
				document.images[prevSelected].src = menuImage[selectedImage].normal.src;
			}
			selectedImage = inImgArrayNum;
			document.images[menuImage[inImgArrayNum].name].src = menuImage[inImgArrayNum].selected.src;
		}
	}
}

function makeNormal(inImgArrayNum){
	if(pageLoaded && imagesSupport){
		if(inImgArrayNum != selectedImage){
			document.images[menuImage[inImgArrayNum].name].src = menuImage[inImgArrayNum].normal.src;
		}
	}
}

function makeHilite(inImgArrayNum){
	if(pageLoaded && imagesSupport){
		if (inImgArrayNum != selectedImage){
			document.images[menuImage[inImgArrayNum].name].src = menuImage[inImgArrayNum].hilite.src;
		}
	}
}