function upload() {
	document.getElementById("submit").style.display = "none";
	document.getElementById("balken").style.display = "inline";
}
function resizebox() {
	if (document.getElementById("_resize").checked == true) {
		document.getElementById("resize").disabled = false;
	} else {
		document.getElementById("resize").disabled = true;
	}
}
anzahl = 1;
function add() {
	anzahl++;
	if (anzahl < 4) {
		var add = document.createElement("input");
		add.type = "file";
		add.name = "bild_" + anzahl;
		document.getElementById("input").appendChild(add);
	} 
	if (anzahl > 2) {
		document.getElementById("add").style.display = "none";	
	}
}