var win=null;
function NewWindow(mypage,myname,w,h,scroll){
		{
			LeftPosition=(screen.availWidth)?(screen.availWidth-w)/2:50;TopPosition=(screen.availHeight)?(screen.availHeight-h)/2:50;
		}
		var settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll;
		win=window.open(mypage,myname,settings);

		win.focus();

}