function SwapGroenBlok(obj, type) {
	if (type == "over") {
		obj.style.backgroundImage = "url('/images/vlak5.gif')";
		if (getObj("HotLinkImage").src.indexOf("_ov.gif") <= 0)
			getObj("HotLinkImage").src = "/images/runerfeestgr.gif";
		
	}
	else if (type == "out") {
		obj.style.backgroundImage = "";
		getObj("HotLinkImage").src = "/images/runerfeestlgr.gif";
	}
}

function SwapBlok(obj, type, nummer) {
	if (type == "over") {
		obj.style.backgroundImage = "url('/images/vlak"+nummer+".gif')";
		getObj("vlak"+nummer).style.display = "inline";
	}
	else if (type == "out") {
		obj.style.background = "";
		getObj("vlak"+nummer).style.display = "none";			
	}
}

function SwapImg(obj, type) {
	if (type == "over") {
		obj.src = obj.src.replace(".gif","_ov.gif");
	}
	else if (type == "out") {
		obj.src = obj.src.replace("_ov.gif", ".gif");
	}				
}

function getObj(obj) {
	return document.getElementById(obj);
}