function toggleImage(a){
	var e=document.getElementById(a);
	if(!e)return true;
if (a == "Image1") {
	var f=document.getElementById("Image2");
	var g=document.getElementById("Image3");
	var h=document.getElementById("Image4");
	if(e.style.display=="none"){
	e.style.display="block"
	f.style.display="none"
	g.style.display="none"
	h.style.display="none"
	}
	return true;
	}

if (a == "Image2") {
	var f=document.getElementById("Image1");
	var g=document.getElementById("Image3");
	var h=document.getElementById("Image4");
	if(e.style.display=="none"){
	e.style.display="block"
	f.style.display="none"
	g.style.display="none"
	h.style.display="none"
	}
	return true;
	}

if (a == "Image3") {
	var f=document.getElementById("Image1");
	var g=document.getElementById("Image2");
	var h=document.getElementById("Image4");
	if(e.style.display=="none"){
	e.style.display="block"
	f.style.display="none"
	g.style.display="none"
	h.style.display="none"
	}
	return true;
	}

if (a == "Image4") {
	var f=document.getElementById("Image1");
	var g=document.getElementById("Image2");
	var h=document.getElementById("Image3");
	if(e.style.display=="none"){
	e.style.display="block"
	f.style.display="none"
	g.style.display="none"
	h.style.display="none"
	}
	return true;
	}

}