var rubriken 			= ["leistungen", "profil", "resonanz","jobs"];
var inaktive_kat 		= "sub";
var aktive_kat			= "activesub";
var inaktives_submenu	= "closed";
var aktives_submenu 	= "opened";

function changeThis(rubrik) {
	closeOthers(rubrik);
	if (document.getElementById("m"+rubrik).className != aktive_kat ) {
		document.getElementById("m"+rubrik).className = aktive_kat;
		document.getElementById("sm"+rubrik).className = aktives_submenu;
	} else {
		document.getElementById("m"+rubrik).className = inaktive_kat;
		document.getElementById("sm"+rubrik).className = inaktives_submenu;
	}
}

function closeOthers(rubrik) {
	for (i=0;i<rubriken.length;i++) {
		if ( rubriken[i] != rubrik ) {
			document.getElementById("m"+rubriken[i]).className = inaktive_kat;
			document.getElementById("sm"+rubriken[i]).className = inaktives_submenu;
		}
	}
}