var imagenumber = 22 ; //Anzahl der Grafiken
		var randomnumber = Math.random() ; 
		var rand1 = Math.round( (imagenumber-1) * randomnumber) +1;

		images1 = new Array 

		images1[1] ="img/zufall/1.jpg"
		images1[2] ="img/zufall/2.jpg"
		images1[3] ="img/zufall/3.jpg"
		images1[4] ="img/zufall/4.jpg"
		images1[5] ="img/zufall/5.jpg"
		images1[6] ="img/zufall/6.jpg"
		images1[7] ="img/zufall/7.jpg"
		images1[8] ="img/zufall/8.jpg"
		images1[9] ="img/zufall/9.jpg"
		images1[10] ="img/zufall/10.jpg"
		images1[11] ="img/zufall/11.jpg"
		images1[12] ="img/zufall/12.jpg"
		images1[13] ="img/zufall/13.jpg"
		images1[14] ="img/zufall/14.jpg"
		images1[15] ="img/zufall/15.jpg"
		images1[16] ="img/zufall/16.jpg"
		images1[17] ="img/zufall/17.jpg"
		images1[18] ="img/zufall/18.jpg"
		images1[19] ="img/zufall/19.jpg"
		images1[20] ="img/zufall/20.jpg"
		images1[21] ="img/zufall/21.jpg"
		images1[22] ="img/zufall/22.jpg"

		var image1 = images1[rand1]