colplot can be used either directly from the command line or as a web accessible
cgi script. In order to use colplot from a browser the /usr/share/colplot/site/
directly needs to be appropriately set up as an accessible DocumentRoot from
your web-serer. Here's is an example configuration for adding an Alias stanz to
an apache virtual server configuration.  Add a stanza to your apache
configuration that looks like this:

  Alias /colplot /usr/share/colplot/site

  <Directory /usr/share/colplot/site>
	  AddHandler cgi-script .cgi
	  AllowOverride None
	  Options None
	  Options +followsymlinks  +execcgi

	  <IfVersion >= 2.3>
		  Require all granted
	  </IfVersion>
	  <IfVersion < 2.3>
		  Order Allow,Deny
		  Allow from all
	  </IfVersion>

	  DirectoryIndex index.php
  </Directory>

You should then be able to access colplot from: http://localhost/colplot