// JavaScript Document

	
    function init() {
      document.onkeydown = keydown;
    };
    
    function keydown(e) {
      e = e || window.event;
	  
     	if(e.keyCode == 39){
			document.location = document.getElementById('weiter').href;
		}
		if(e.keyCode == 37){
			document.location = document.getElementById('zuruck').href;	
		}
    }