var win;

function popup(file, width, height) {
	if (width == 300) {
		width = 500;
	}
	
	if (win && !win.closed) {
		win.close();
	}

	win = window.open(file, '', 'resizable=yes,scrollbars=yes,toolbar=no,titlebar=no,menubar=no,location=no,width=' + width + ',height=' + height);
}

function zoom(file) {
	if (win && !win.closed) {
		win.close();
	}

	win = window.open(file, '', 'resizable=no,toolbar=no,titlebar=no,menubar=no,location=no,width=500,height=525,screeny=0,top=0');
	if (navigator.appName != "Netscape") {
			win.moveTo(100,0);
	}
}