function selectslider(a) {
	document.getElementById("home").style.display = "none";
	document.getElementById("leinwand").style.display = "none";
	document.getElementById("fotodruck").style.display = "none";
	document.getElementById("fahrzeug").style.display = "none";
	document.getElementById("aussenwerbung").style.display = "none";
	document.getElementById("messe").style.display = "none";
	document.getElementById("backdrop").style.display = "none";
	document.getElementById("bekleidung").style.display = "none";
	document.getElementById("geschaeft").style.display = "none";
	document.getElementById(a).style.display = "";
}
function selectall() {
	document.getElementById("leinwand").style.display = "";
	document.getElementById("fotodruck").style.display = "";
	document.getElementById("fahrzeug").style.display = "";
	document.getElementById("aussenwerbung").style.display = "";
	document.getElementById("messe").style.display = "";
	document.getElementById("backdrop").style.display = "";
	document.getElementById("bekleidung").style.display = "";
	document.getElementById("geschaeft").style.display = "";
}