// Vorladen der Buttons
		var img03out = new Image();
		img03out.src = 'gfx/but_mediadaten_1.gif';
		
		
		// Vorladen der 'Hover'-buttons
		var img03over = new Image();
		img03over.src = 'gfx/but_mediadaten_2.gif';
		
		
		
		
		
function imgOut(imgName){
		  document.images[imgName].src = eval(imgName + "out.src");
		}
		function imgOver(imgName){
		  document.images[imgName].src = eval(imgName + "over.src");
		}