window.onload = function() {
		document.getElementById("bigbanner").onclick = function() {
			document.getElementById("bigbanner").style.zIndex = "1";
			document.getElementById("bigbanner2").style.zIndex = "0";
			document.getElementById("linker").style.display = "block";
			console.log("BIGBANNERfront");
		}
		document.getElementById("bigbanner2").onclick = function() {
			document.getElementById("bigbanner").style.zIndex = "0";
			document.getElementById("bigbanner2").style.zIndex = "1";
			document.getElementById("linker").style.display = "none";
			console.log("BIGBANNER2front");
		}
	
		document.getElementById("gast").onclick = function() {
			document.getElementById("gast").style.display = "none";
			document.getElementById("gastover").style.display = "block";
		}
		document.getElementById("banner").onmouseover = function() {
			document.getElementById("gast").style.display = "block";
			document.getElementById("gastover").style.display = "none";
		}
		document.getElementById("bigbanner").onmouseover = function() {
			document.getElementById("gast").style.display = "block";
			document.getElementById("gastover").style.display = "none";
		}
}