function new_window(mypage)
  {
  settings = "width=200,height=100,top=100,left=200,toolbar=no,menubar=no,scrollbars=no,resizable=no";
  window.open(mypage,"inv_loading",settings)
  }


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+',left='+LeftPosition+',scrollbars,noresizable,menubar'
  win = window.open(mypage,myname,settings)
  if(win.window.focus){win.window.focus();}
  }