function ToggleElements(layer1,layer2,layer3){
	var myLayer1 = document.getElementById(layer1);
	if(myLayer1.style.display=="none"){
        myLayer1.style.display="block";
	} else {
		myLayer1.style.display="none";
	}
	
	var myLayer2 = document.getElementById(layer2);
	if(myLayer2.style.display=="none"){
        myLayer2.style.display="block";
	} else {
		myLayer2.style.display="none";
	}
	
	var myLayer3 = document.getElementById(layer3);
	if(myLayer3.style.display=="none"){
        myLayer3.style.display="block";
	} else {
		myLayer3.style.display="none";
	}
}

function ToggleElements(layer1,layer2,layer3,layer4){
	var myLayer1 = document.getElementById(layer1);
	if(myLayer1.style.display=="none"){
        myLayer1.style.display="block";
	} else {
		myLayer1.style.display="none";
	}
	
	var myLayer2 = document.getElementById(layer2);
	if(myLayer2.style.display=="none"){
        myLayer2.style.display="block";
	} else {
		myLayer2.style.display="none";
	}
	
	var myLayer3 = document.getElementById(layer3);
	if(myLayer3.style.display=="none"){
        myLayer3.style.display="block";
	} else {
		myLayer3.style.display="none";
	}
	
	var myLayer4 = document.getElementById(layer4);
		if(myLayer4.style.display=="none"){
	        myLayer4.style.display="block";
		} else {
			myLayer4.style.display="none";
	}
}