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  28  <H1><A NAME="6">6 Using image maps with JpGraph</A></H1>
  29  <P> Image maps, or client side image (CSIM) as they are known is fully
  30   supported in JpGraph. It gives you the opportunity to create hot-spots
  31   in the graphs which allows you to build a set of &quot;drill-down&quot; graphs.</P>
  32  <P> In the following section is based on the assumption that the reader
  33   is familiar with the basic concepts of client side image map in HTML.</P>
  34  <P> To shortly recapitulate. Client side image maps consists of two
  35   parts. The first part is the actual image and the second part is a
  36   mapping that gives the coordinates for areas in the image which should
  37   be marked as hot spots (i.e. click-able by the user). The library can
  38   automatically generate these coordinate maps from a given graph.</P>
  39  <P> Through out the manual areas of the graph that may be used as a
  40   hotspot is given in conjuction with the general description of that
  41   area.</P>
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