function Popup( url, w, h ) {
	var win;
	if (  navigator.appName.substring(0,8) == "Netscape" ) { // Browser ist Netscape
		win = open( url, "Popup", "scrollbars=no,menubar=0,status=0" );
		win.resizeTo( w, h );
	}
	else {
		win = open( url, "Popup", "scrollbars=no,menubar=0,status=0,width="+w+",height="+h );
	}
	win.focus();
}