var originalImage = "";
var originalText = "1";
function imagechange(id, image)
 {
 	originalImage = document.getElementById(id).src;
 	document.getElementById(id).src = image;
 }
function restoreImage(id)
 {
 	document.getElementById(id).src = originalImage;
 	originalImage = "";
 }
 
function imagechangeText(id, image, nummer)
 {
 	originalImage = document.getElementById(id).src;
 	document.getElementById(id).src = image;
 	document.getElementById('referenzenText' + originalText).style.display = 'none';
 	document.getElementById('referenzenText' + nummer).style.display = 'block'; 	
 }
function restoreImageText(id, nummer)
 {
 	document.getElementById(id).src = originalImage;
 	originalImage = "";
 	document.getElementById('referenzenText' + nummer).style.display = 'none';
 	document.getElementById('referenzenText' + originalText).style.display = 'block';
 }
function saveImage(id, nummer)
 {
 	originalImage = document.getElementById(id).src;
 	originalText = nummer;
 }