function NewWindow(mypage,myname,w,h,scroll){
	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'
	win = window.open(mypage,myname,settings)
	return false;
}

function redirectAndClose(url) {
	window.opener.location.replace(url);
	window.close();
}