function NewWindow(mypage, myname, w, h, scroll){
	var win = null;
	
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;

	settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable=false';
	win = window.open(mypage, myname, settings);
}