var win; 
function openWindow(mypage,w,h){
			
	var settings, TopPosition, LeftPosition;
		
	//TopPosition = (screen.height)/2 - (h/2);
	TopPosition=1;
	LeftPosition = (screen.width)-w-10;
	settings ='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars=no';
	if (win != null){
		win.close();
		win = null;
	}
	win = window.open(mypage,'',settings)
	win.window.focus();
}
function openPopup(mypage,w,h){
			
	var settings, TopPosition, LeftPosition;
		
	TopPosition = (screen.height)/2 - (h/2);
	LeftPosition = (screen.width)/2 - (w/2);
	settings ='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars=no';
	if (win != null){
		win.close();
		win = null;
	}
	win = window.open(mypage,'',settings)
	win.window.focus();
}