function change_1() {
	var home_image = document.getElementById('bild_1');			
	/*var home_text = document.getElementById('text');	*/
	home_image.src = 'image/bild_1.jpg'; 
	/* home_text.innerHTML = ' ';	*/
}
function change_2() {
	var home_image = document.getElementById('bild_1');			
	/*var home_text = document.getElementById('text');	*/
	home_image.src = 'image/bild_2.jpg'; 
	/* home_text.innerHTML = ' ';	*/
}
function change_3() {
	var home_image = document.getElementById('bild_1');			
	/*var home_text = document.getElementById('text');	*/
	home_image.src = 'image/bild_3.jpg'; 
	/* home_text.innerHTML = ' ';	*/
}
function change_4() {
	var home_image = document.getElementById('bild_1');			
	home_image.src = 'image/bild_4.jpg'; 
}
function change_5() {
	var home_image = document.getElementById('bild_1');			
	home_image.src = 'image/bild_5.jpg'; 
}
function change_6() {
	var home_image = document.getElementById('bild_1');			
	home_image.src = 'image/space.gif'; 
}