function aufpop1() {
	if (document.getElementById("pop_cat").style.display == "block" || document.getElementById("pop_bez").style.display == "block" || document.getElementById("pop_ber").style.display == "block") {
	document.getElementById("pop_cat").style.display = "none";} else {
	document.getElementById("pop_cat").style.display = "block";
	}
}

function aufpop2() {
	if (document.getElementById("pop_bez").style.display == "block" || document.getElementById("pop_cat").style.display == "block" || document.getElementById("pop_ber").style.display == "block") {
	document.getElementById("pop_bez").style.display = "none";} else {
	document.getElementById("pop_bez").style.display = "block";
	}
}

function aufpop3() {
	if (document.getElementById("pop_ber").style.display == "block" || document.getElementById("pop_cat").style.display == "block" || document.getElementById("pop_bez").style.display == "block") {
	document.getElementById("pop_ber").style.display = "none";} else {
	document.getElementById("pop_ber").style.display = "block";
	}
}


function zupop1() {
	document.getElementById("pop_cat").style.display = "none";
}


function zupop2() {
	document.getElementById("pop_bez").style.display = "none";
}

function zupop3() {
	document.getElementById("pop_ber").style.display = "none";
}


function schrigros() {
	document.getElementsByTagName("body")[0].style.fontSize = "120%";
}

function schriklein() {
	document.getElementsByTagName("body")[0].style.fontSize = "90%";
}