[Jmol-users] File reference question

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I have written a lot of Chime pages and am just now getting around to
learning jmol.  I was going to have my biochem students write some
simple jmol pages this semester.  My experience in the past has been
that you must keep things simple in order to do this kind of exercise in
class as you never know what might come up, as shown by the fact I spent
all morning sorting through this problem:

All the jmol pages at the jmol web site work on my Dell PC running
IE6.0 and Mozilla 1.7.3 so I assume my hardware and software is
compatible.  I downloaded the jmol 10.00 zip file and extracted into a
folder on my hard drive in subdirectory "jmolprograms".  I then copied
the code for the very simple jmol demo page from the jmol.js page
(http://jmol.sourceforge.net/jslibrary/) and saved as an html file along
with the caffeine.xyz file is subdirectory "jmolpages".  I edited the
code for my directory structure as instructed at the web page to get:

<html>
  <head>
    <title>Simple example</title>
    <script src="../jmolprograms/Jmol.js"></script>
  </head>
  <body>
    <script>
      jmolInitialize("../jmolprograms")
      jmolApplet(200, "load caffeine.xyz");
    </script>
  </body>
</html>

This page would display the black jmol box, but no image loaded.  After
troubleshooting all morning, I find that if I put the same page along
with the xyz file in the "jmolprograms" subdirectory, the jmol image
comes up fine.  I also find that if I put the jmol program files in the
root directory, then this page works in either subdirectory:

<html>
  <head>
    <title>Simple example</title>
    <script src="../Jmol.js"></script>
  </head>
  <body>
    <script>
      jmolInitialize("../")
      jmolApplet(200, "load caffeine.xyz");
    </script>
  </body>
</html>

Finally, when I got the empty jmol box with no image, I could use the
jmol menu to open a console window.
When I entered a "load caffeine.xyz" command I get a bunch of errors:

File Error:java.security.AccessControlException: access denied
and
ScriptException:java.security.AccessControlException: access denied

Does anyone know what I'm doing wrong.  I would like to get this sorted
out or I'll have 15 frustrated students I can't help.

Thanks in advance
Todd

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An interactive viewer for three-dimensional chemical structures.

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