// JavaScript Document


var popupWindow = null;
function centeredPopup(url,winName,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'
popupWindow = window.open(url,winName,settings)
}

function closepopup()
   {
      if(false == my_window.closed)
      {
         my_window.close ();
      }
      else
      {
         alert('Window already closed!');
      }
   }