function showlayer(layer){
	var myLayer=document.getElementById(layer);
	document.getElementById('entertainment_fun').style.display="none";
	document.getElementById('world_news').style.display="none";
	document.getElementById('science_technology').style.display="none";
	document.getElementById('life_lifestyle').style.display="none";
	if(myLayer.style.display=="none" || myLayer.style.display==""){
		myLayer.style.display="block";
	} else { 
		myLayer.style.display="none";
		}
}

function showlayer2(layer){
	var myLayer=document.getElementById(layer);
	if(myLayer.style.display=="none" || myLayer.style.display==""){
		myLayer.style.display="block";
	} else { 
		myLayer.style.display="block";
		}
}


function showlayer3(layer){
	var myLayer=document.getElementById(layer);
	if(myLayer.style.display=="block"){
		myLayer.style.display="block";
	} else { 
		myLayer.style.display="none";
		}
}

function hidelayer(layer){
	var myLayer=document.getElementById(layer);
	if(myLayer.style.display=="block"){
		myLayer.style.display="none";
	} else { 
		myLayer.style.display="block";
		}
}

function hidelayer3(layer){
	var myLayer=document.getElementById(layer);
	if(myLayer.style.display=="block"){
		myLayer.style.display="none";
	} else { 
		myLayer.style.display="none";
		}
}