function new_window(url, height, width) {

	if(!height) height	= 400;
	if(!width) width	= 400;

	var nameW	= 'handout';

	if (navigator.appVersion.indexOf('4') != -1) {

		// Vars for centering the new window on Version 4 Browsers
		 xTop = screen.width/2 - (width/2);
		 yTop = screen.height/2 - (height/2);
		 flyer = window.open(url, nameW, 'height='+height+',width='+width+',scrollbars=1,resizable=1,menubar=1,toolbar=0,status=0,location=0,directories=0,left=' + xTop + ',top=' + yTop + '');

	} else {

		 flyer = window.open(url, nameW, 'height='+height+',width='+width+',scrollbars=1,resizable=1,menubar=1,toolbar=0,status=0,location=0,directories=0,left=10,top=10');

	}
	flyer.focus();
}