function showlayer(layer,link){
	var myLayer = document.getElementById(layer);
	var myLink = link;
		if(myLayer.style.display=="none" || myLayer.style.display==""){
			myLayer.style.display="block";
			myLink.style.backgroundColor = "#4A91C3";
			myLink.style.border = "1px solid #4A91C3";
		} else {
			myLayer.style.display="none";
			link.style.backgroundColor = "";
			link.style.border = "";
			
	}
}

function hidelayer(layer,link){
	var myLayer = document.getElementById(layer);
	var myLink = link;	
		if(myLayer.style.display=="block"){
			myLayer.style.display="none";
			myLink.style.backgroundColor = "";
			myLink.style.border = "";	
		}
}