c1=new Image();
c1.src = "./img/ext/kontakt_button2.jpg"
c2=new Image();
c2.src = "./img/ext/kontakt_button1.jpg"



function mo(img,f) {
if (document.images)
	{
	if (f==true)
		{
		document.images[img].src=eval(img + "2.src");
		}
		else
		{
		document.images[img].src=eval(img + "1.src");
		}
	}
}