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    <blockquote cite="mid:541295DE.50603@gmail.com" type="cite"> Hi,
      that would be useful for me, if you can explain me I&acute;ll appreciate
      it. And then I can compare with Bart&acute;s code, and learn a&nbsp; bit
      more.<br>
      <br>
      Thank you.<br>
      <br>
      <div class="moz-cite-prefix">El 12/09/14 00:18, Brad Spencer
        escribi&oacute;:<br>
      </div>
      <blockquote cite="mid:015601cfce0e$54a0ebd0$fde2c370$@com.au"
        type="cite">
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          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">I
              am not quite sure if I am doing what you want (see
              tree.jpg attached) but I load different icons at tree leaf
              level depending on if the layer is editable to this user&#8217;s
              account. Then when they click on the layer to make it
              visible, I have loadstart and loadend registered events on
              the layers to switch the icon to a wait wheel and back
              again. <o:p></o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">I
              also use the same method with point symbols where a layer
              represents a single data type (see tree_symbol.jpg
              attached). I use the symbol image at the tree leaf level.<o:p></o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">If

              this is what you need to do I can explain how I do it.<o:p></o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Let

              me know what you think.<o:p></o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Cheers,<o:p></o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
          <p class="MsoNormal"><b><span
style="font-size:14.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Brad

                Spencer<o:p></o:p></span></b></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Managing

              Director</span><b><span
style="font-size:14.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p></o:p></span></b></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><img
                id="Picture_x0020_1"
                src="cid:part1.03070909.01080400@gmail.com" height="72"
                width="144"><o:p></o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><a
                moz-do-not-send="true" href="http://www.numaps.com.au/"><span
                  style="color:blue">http://www.numaps.com.au/</span></a><o:p></o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">tel:

              02 9672 6856<o:p></o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">mob:

              0404 841 131<o:p></o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">see

              my artwork <a moz-do-not-send="true"
                href="http://www.paintingsilove.com/artist/bradspencer"><span
                  style="color:blue">here</span></a><o:p></o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
          <br>
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