var win = null;
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+ ',20.left='+LeftPosition+ ',scrollbars='+scroll+ ',resizable'
	win = window.open(mypage,myname,settings)
	if(win.window.focus){
		win.window.focus();
		}
		}