// Use this function to control placement of pop-up window

// in Netscape 4+ and Internet Explorer 4+

function openPopImgWin(imgWinName, windowWidth, windowHeight){

  var leftX = 20  // distance of window's left side from left of screen

  var topY = 20   // distance of window's top side from top of screen

  var winFeatures = "toolbar=no,scrollbars=no,resizable=no,width="

    + windowWidth + ",height=" + windowHeight

  if (leftX>0){

    winFeatures += ",screenX=" + leftX + ",left=" + leftX

                + ",screenY=" + topY + ",top=" + topY

    }

  return window.open("pimg.htm", imgWinName, winFeatures)

  }