/**
 * @author Mirjam
 */
/*bild_1= new Image();
bild_1.src="img/project_img_hoover.gif";
bild_2= new Image();
bild_2.src="img/project_img.jpg";

img1_on = new Image();
img1_on.src="img/project_img_hoover.gif";
img1_off = new Image();
img1_off.src="img/project_img.jpg";

img2_on = new Image();
img2_on.src="img/project_img_hoover.gif";
img2_off = new Image();
img2_off.src="img/project_img.jpg";
  
img3_on = new Image();
img3_on.src="img/project_img_hoover.gif";
img3_off = new Image();
img3_off.src="img/project_img.jpg";

img4_on = new Image();
img4_on.src="img/project_img_hoover.gif";
img4_off = new Image();
img4_off.src="img/project_img.jpg";
  
img5_on = new Image();
img5_on.src="img/project_img_hoover.gif";
img5_off = new Image();
img5_off.src="img/project_img.jpg";

img6_on = new Image();
img6_on.src="img/project_img_hoover.gif";
img6_off = new Image();
img6_off.src="img/project_img.jpg";

img7_on = new Image();
img7_on.src="img/project_img_hoover.gif";
img7_off = new Image();
img7_off.src="img/project_img.jpg";

img8_on = new Image();
img8_on.src="img/project_img_hoover.gif";
img8_off = new Image();
img8_off.src="img/project_img.jpg";

img9_on = new Image();
img9_on.src="img/project_img_hoover.gif";
img9_off = new Image();
img9_off.src="img/project_img.jpg";

img10_on = new Image();
img10_on.src="img/project_img_hoover.gif";
img10_off = new Image();
img10_off.src="img/project_img.jpg";

img11_on = new Image();
img11_on.src="img/project_img_hoover.gif";
img11_off = new Image();
img11_off.src="img/project_img.jpg";

img12_on = new Image();
img12_on.src="img/project_img_hoover.gif";
img12_off = new Image();
img12_off.src="img/project_img.jpg";

img13_on = new Image();
img13_on.src="img/project_img_hoover.gif";
img13_off = new Image();
img13_off.src="img/project_img.jpg";

img14_on = new Image();
img14_on.src="img/project_img_hoover.gif";
img14_off = new Image();
img14_off.src="img/project_img.jpg";*/

function showon(wert){
	document[wert].src = eval(wert + "_on.src");
}
function showoff(wert){
    document[wert].src = eval(wert + "_off.src");
}