function openButton(b){
	var i = b.getElementsByTagName("img")[0];
	if(!i) return;
	if(i.className=="menuButtonClosed"){
		closeAll();
		i.className = "menuButtonOpen";
		b.nextSibling.style.display="block";
	}else if(i.className=="menuButtonOpen"){
		i.className = "menuButtonClosed";
		b.nextSibling.style.display="none";
	}
}
function closeAll(){
	var iArray = DOM.Get("Menu").getElementsByTagName("img");
	for(var i=0; i<iArray.length; i++){		
		var img = iArray[i];
		if(img.className=="menuButtonOpen"){
			img.className = "menuButtonClosed";
			img.parentNode.parentNode.parentNode.nextSibling.style.display = "none";
		}
	}
}