| File Purpose: | File Depedencies |
| The main file for the system that calls necessary modules when needed. | secure.php, modules/config_mod_list.php, root.inc.php, inculde/header.inc.php, include/footer.inc.php, nav.php |
| External Function call | Location of Definiton |
| mysql_error() | PHP Built-in Function. |
| External Variable Name | Purpose |
| SESSION[] | to keep track of user information. |
| Internal Function call | Purpose |
| n/a | n/a |
| Class Name | Purpose |
| n/a | n/a |
| Local Variables | Purpose |
| $error_message | contains the error string "Session Expired" |
| $long_error_message | contains a more detailed error string. |
| $q | contains results of a query. |
| $r | contains the associative array linked to the query "q". |
| $list | contains the list of control points available to the user. |
| Comments | This file validates the user session, calls the module requested by the user renders the main page in the system. |
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