
      <!-- //

        introduction_off = new Image();
        introduction_off.src = "images/tops_nav_introduction_off.gif";
        introduction_on = new Image();
        introduction_on.src = "images/tops_nav_introduction_on.gif";

        futureproductions_off = new Image();
        futureproductions_off.src = "images/tops_nav_futureproductions_off.gif";
        futureproductions_on = new Image();
        futureproductions_on.src = "images/tops_nav_futureproductions_on.gif";

        pastproductions_off = new Image();
        pastproductions_off.src = "images/tops_nav_pastproductions_off.gif";
        pastproductions_on = new Image();
        pastproductions_on.src = "images/tops_nav_pastproductions_on.gif";

        directions_off = new Image();
        directions_off.src = "images/tops_nav_directions_off.gif";
        directions_on = new Image();
        directions_on.src = "images/tops_nav_directions_on.gif";

        contactus_off = new Image();
        contactus_off.src = "images/tops_nav_contactus_off.gif";
        contactus_on = new Image();
        contactus_on.src = "images/tops_nav_contactus_on.gif";

        function swapper(imgName,imgObjName)		
          {
          if (document.images)
            {
            document.images[imgName].src = eval(imgObjName + ".src");
            }
          }

        function windowPopup(windowURL,windowTitle,windowWidth,windowHeight)
          {
          gen = window.open(windowURL,windowTitle,'toolbars=0,scrollbars=0,location=0,top=160,left=250,statusbars=0,menubars=0,resizable=1,width=' + windowWidth + ',height=' + windowHeight);
          }

      // -->