<!-- BEGIN Pop-up Windows Script------------------------------------------>
        var popWin = null    // use this when referring to pop-up window
        var winCount = 0
        var winName = "popWin"
        function openPopWin(winURL, winWidth, winHeight, winFeatures, winLeft, winTop){
          var d_winLeft = 20  // default, pixels from screen left to window left
          var d_winTop = 20   // default, pixels from screen top to window top
          winName = "popWin" + winCount++ //unique name for each pop-up window
          closePopWin()           // close any previously opened pop-up window
          if (openPopWin.arguments.length >= 4)  // any additional features?
            winFeatures = "," + winFeatures
          else
            winFeatures = ""
          if (openPopWin.arguments.length == 6)  // location specified
            winFeatures += getLocation(winWidth, winHeight, winLeft, winTop)
          else
            winFeatures += getLocation(winWidth, winHeight, d_winLeft, d_winTop)
          popWin = window.open(winURL, winName, "width=" + winWidth
                   + ",height=" + winHeight + winFeatures)
          }
        function closePopWin(){    // close pop-up window if it is open
          if (navigator.appName != "Microsoft Internet Explorer"
              || parseInt(navigator.appVersion) >=4) //do not close if early IE
            if(popWin != null) if(!popWin.closed) popWin.close()
          }
        function getLocation(winWidth, winHeight, winLeft, winTop){
          return ""
          }
					
					// for Netscape 4+ and IE 4+

        function getLocation(winWidth, winHeight, winLeft, winTop){
          var winLocation = ""
          if (winLeft < 0)
            winLeft = screen.width - winWidth + winLeft
          if (winTop < 0)
            winTop = screen.height - winHeight + winTop
          if (winTop == "cen")
            winTop = (screen.height - winHeight)/2 - 20
          if (winLeft == "cen")
            winLeft = (screen.width - winWidth)/2
          if (winLeft>0 & winTop>0)
            winLocation =  ",screenX=" + winLeft + ",left=" + winLeft
                        + ",screenY=" + winTop + ",top=" + winTop
          else
            winLocation = ""
          return winLocation
          }					
<!-- END Pop-up Windows Script------------------------------------------>