function winopener(wi,hi,Adresse)
{
	upperleftX = (screen.availWidth - wi)/2;		// X Pos. des Fenster (:2 Teilen falls mittig)
	upperleftY = (screen.availHeight - hi)/2;		// Y Pos. des Fenster (:2 Teilen falls mittig)
	openerprefs = new String('width=' + wi + ',height=' + hi + ',resizable=yes,menubar=no,toolbar=no,scrollbars=yes,status=no,closed=true,screenY=' + upperleftY + ',screenX=' + upperleftX)
	var win = window.open(Adresse,"alternaPopup",openerprefs);
	win.moveTo(upperleftX,upperleftY);
	win.focus();
}

function winopener2(wi,hi,Adresse)
{
	upperleftX = (screen.availWidth - wi)/2;		// X Pos. des Fenster (:2 Teilen falls mittig)
	upperleftY = (screen.availHeight - hi)/2;		// Y Pos. des Fenster (:2 Teilen falls mittig)
	openerprefs = new String('width=' + wi + ',height=' + hi + ',resizable=yes,menubar=no,toolbar=no,scrollbars=yes,status=no,closed=true,screenY=' + upperleftY + ',screenX=' + upperleftX)
	var win = window.open(Adresse,"zhivagoPopup2",openerprefs);
	win.moveTo(upperleftX,upperleftY);
	win.focus();
}