demo3.html - restoring the mode

1. add 2 hidden from variables to demo.html
      box = <input type="text" name="box" value=[box]>
      drag = <input type="text" name="drag" value=[drag]>
   (normally these would be hidden, but for now it is convenient to see the values).
   
   
2. add 2 parameters to the applet:
      <param name="box" value="[box]">
      <param name="drag" value="[drag]">
   
   
3. add Javascript to the radio button onClick events:
      <!-- mode Radio Button Group -->
      <input type="radio" name="mode" value="browse" checked>
         Browse map><br>
   
      <input type="radio" name="mode" value="query"
         onClick="document.jBox.boxoff();
         document.mapserv.box.value='false';
         document.mapserv.drag.value='false';">
      Query feature<br>
   
      <input type="radio" name="mode" value="nquery"
         onClick="document.jBox.boxon();
         document.mapserv.box.value='true';
         document.mapserv.drag.value='false';">
      Query multiple features
   
      <!-- zoomdir Radio Button Group -->
      <input type=radio name=zoomdir value=1 [zoomdir_1_check]
         onClick="document.jBox.boxon();
         document.mapserv.box.value='true';
         document.mapserv.drag.value='false';
         document.mapserv.mode[0].checked='true';"> <!-- optional -->
      Zoom In<BR>
   
      <input type=radio name=zoomdir value=0 [zoomdir_0_check]
         onClick="document.jBox.dragon();
         document.mapserv.drag.value='true';
         document.mapserv.box.value='false';
         document.mapserv.mode[0].checked='true';"> <!-- optional -->
      Pan<BR>
   
   <input type=radio name=zoomdir value=-1 [zoomdir_-1_check]
         onClick="document.jBox.boxoff();
         document.mapserv.box.value='false';
         document.mapserv.drag.value='false';
         document.mapserv.mode[0].checked='true';"> <!-- optional -->
      Zoom Out
   
   
4. add 2 hidden from variables to demo_init.html
      <input type="hidden" name="box" value="false">
      <input type="hidden" name="drag" value="true">