var menus= new Array;
	menus[0]="unternehmen";
	menus[1]="dienstleistung";
	menus[2]="shop";
	menus[3]="kunden";
	function hideall() {
        for(id=0;id<4;id++){				
			document.getElementById(menus[id]).style.visibility = "hidden";
			document.getElementById(menus[id]).style.visibility = "hidden";
			document.getElementById(menus[id]+'_link').className = "button";
		}
    }
	function hide(id) {
		document.getElementById(id).style.visibility = "hidden";
        document.getElementById(id).style.visibility = "hidden";
		document.getElementById(id+'_link').className = "button";
    }
    function show(id) {
        hideall();
		document.getElementById(id+'_link').className = "button-active";
        document.getElementById(id).className = "section-active";
        document.getElementById(id).style.visibility = "visible";
    }
	function movepic(img_name,img_src) {
		document[img_name].src=img_src;
	}