function sprung(){
var Mainframe = parent.frames[13].location.href;
var MainSplit = Mainframe.lastIndexOf("/");
var Gal = Mainframe.substr(MainSplit-7,7);
var Jahr = Mainframe.substr(MainSplit-4,4);
	if (Gal == "gallery"){
		var MainSplit = Mainframe.lastIndexOf("_");
		var Jahr = Mainframe.substr(MainSplit+1,4);
	}
	if (isNaN(Jahr)){
		Mainframe = Mainframe.substr(0,MainSplit);
			var MainSplit = Mainframe.lastIndexOf("/");
                        var Jahr = Mainframe.substr(MainSplit-4,4);
	} 
	if (!isNaN(Jahr)){
var Anker = '#'+Jahr;
parent.frames[5].location.href = 'History_Kategorien.html'+Anker;
}}