gNumImages = 0;
var lastButton="";
function hover(bName) 
{
	if (document.images) 
	{
		if (lastButton != "")
			normal(lastButton);

		lastButton=bName;
		if (!document.images[bName])
			return false;

		document.images[bName].src = hoverSrc[bName];
		if (clickSrc[bName])
		{
			tmpImage = new Image();
			tmpImage.src = clickSrc[bName];
			delete tmpImage;
		}
		if (imgStatusText[bName] != "")
		{ self.status = imgStatusText[bName]; return true; }
	}
	return false;
}

function click(bName) 
{
	if (document.images) 
	{
		lastButton=bName;
		if (!document.images[bName] || clickSrc[bName]=="")
			return true;

		document.images[bName].src = clickSrc[bName];
	}
	return true;
}

function normal(bName)
{
	if(document.images && bName != "")
	{
		if (document.images[bName])
			document.images[bName].src = normalSrc[bName];

		if (imgStatusText[bName] != "")
		{	self.status = ""; return true; }
	}
	return false;
}

function regImages(bName, normalSource, hoverSource, clickSource, width, height, statusText)
{
	if (document.images) 
	{
		gNumImages++;
		normalSrc[bName] = normalSource;
		hoverSrc[bName] = hoverSource;
		clickSrc[bName] = clickSource;
		imgStatusText[bName] = statusText;

		hoverImg[bName] = new Image();
		hoverImg[bName].src = hoverSource;
	}
}

if (document.images)
{
	hoverSrc	=	new Array(gNumImages);
	normalSrc	=	new Array(gNumImages);
	clickSrc	=	new Array(gNumImages);
	hoverImg	=	new Array(gNumImages);
	imgStatusText = new Array (gNumImages);
}