function PopUp(HREF, width, height) {
// var HREF = 'detail.chtml?bild=/img/art_gr/';
	// HREF = HREF.concat( szbild );
	if (top.pu_win) top.pu_win.close();
	top.pu_win = window.open(HREF, 'detail_win', 'width='+width+',height='+height+',resizeable=yes, dependent=yes,locationbar=no,menubar=no,scrollbars=yes');
	top.pu_win.focus();

}