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280 lines
8.8 KiB
280 lines
8.8 KiB
19 years ago
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<?php
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004 Dokeos S.A.
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Copyright (c) Denes Nagy (darkden@freemail.hu)
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
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==============================================================================
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*/
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/**
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==============================================================================
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* API event handler functions for Scorm 1.1 and 1.2 and 1.3
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*
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* @author Denes Nagy <darkden@freemail.hu>
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* @version v 1.0
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* @access public
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* @package dokeos.scorm
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==============================================================================
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*/
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/*
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==============================================================================
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INIT SECTION
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==============================================================================
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*/
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// if you open the imsmanifest.xml via local machine (f.ex.: file://c:/...), then the Apiwrapper.js
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// of Maritime Navigation when trying to execute this row
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// var result = api.LMSInitialize("");
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// get the error response : you are not authorized to call this function
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include('../inc/global.inc.php');
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$this_section=SECTION_COURSES;
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$TBL_SCORM_SCO_DATA=$scormDbName.".scorm_sco_data";
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$_uid = $_SESSION['_uid'];
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$_user = $_SESSION['_user'];
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$old_s_identifier = $_SESSION['old_sco_identifier'];
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$my_s_identifier = $_SESSION['s_identifier'];
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$file = $_SESSION['file'];
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//in some cases (manual clicks), there is no "old" s_identifier because there is no "new" one.
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if(empty($old_s_identifier)){
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$old_s_identifier = $my_s_identifier;
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}
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/*
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==============================================================================
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JavaScript Functions
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==============================================================================
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*/
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?>
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<html><head><script type='text/javascript'>
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/* <![CDATA[ */
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var alerts=0; //debug output level. 0 = none, 1=light, 2=a lot, 3(not implemented)=all
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if (alerts>1) { alert('scormfunctions.php included'); }
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function APIobject() {
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this.LMSInitialize=LMSInitialize; //for Scorm 1.2
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this.Initialize=LMSInitialize; //for Scorm 1.3
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this.LMSGetValue=LMSGetValue;
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this.GetValue=LMSGetValue;
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this.LMSSetValue=LMSSetValue;
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this.SetValue=LMSSetValue;
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this.LMSCommit=LMSCommit;
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this.Commit=LMSCommit;
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this.LMSFinish=LMSFinish;
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this.Finish=LMSFinish;
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this.LMSGetLastError=LMSGetLastError;
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this.GetLastError=LMSGetLastError;
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this.LMSGetErrorString=LMSGetErrorString;
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this.GetErrorString=LMSGetErrorString;
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this.LMSGetDiagnostic=LMSGetDiagnostic;
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this.GetDiagnostic=LMSGetDiagnostic;
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this.Terminate=Terminate; //only in Scorm 1.3
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}
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//it is not sure that the scos use the above declarations
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API = new APIobject(); //for scrom 1.2
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api = new APIobject(); //for scrom 1.2
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API_1484_11 = new APIobject(); //for scrom 1.3
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api_1484_11 = new APIobject(); //for scrom 1.3
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var G_NoError = 0;
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var G_GeneralException = 101;
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var G_ServerBusy = 102;
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var G_InvalidArgumentError = 201;
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var G_ElementCannotHaveChildren = 202;
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var G_ElementIsNotAnArray = 203;
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var G_NotInitialized = 301;
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var G_NotImplementedError = 401;
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var G_InvalidSetValue = 402;
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var G_ElementIsReadOnly = 403;
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var G_ElementIsWriteOnly = 404;
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var G_IncorrectDataType = 405;
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var G_LastError = G_NoError ;
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var commit = false ;
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var score=0;
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var max=0;
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var min=0;
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var lesson_status='';
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var session_time=0;
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function LMSInitialize() { //this is the initialize function of all APIobjects
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if (alerts>0) { alert('LMSInitialise() called (by SCORM content)'); }
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//initialise the lesson status between two lessons, to avoid status override
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lesson_status = '';
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return('true');
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}
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function Initialize() { //this is the initialize function of all APIobjects
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return LMSInitialize();
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}
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function LMSGetValue(param) {
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var result;
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switch(param) {
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case 'cmi.core._children' :
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case 'cmi.core_children' :
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result='entry, exit, lesson_status, student_id, student_name, lesson_location, total_time, credit, lesson_mode, score, session_time'; break;
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case 'cmi.core.entry' : result=''; break;
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case 'cmi.core.exit' : result=''; break;
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case 'cmi.core.lesson_status' :
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if(lesson_status != '') {result=lesson_status;}
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else{<?php
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$result = api_sql_query("SELECT status FROM $TBL_SCORM_SCO_DATA WHERE (studentId='$_uid' and scoIdentifier='$my_s_identifier')");
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$ar=mysql_fetch_array($result);
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$status=$ar['status'];
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if(empty($ar['status'])){$status = "not attempted";}
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#echo "{ if (alerts>1) { alert('Status of $s_identifier : $status'); }
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# TODO: implement this better thanks to the runtime environment doc of SCORM
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echo " result='$status';";?>
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}
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break;
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case 'cmi.core.student_id' : <?php echo "result='$_uid';"; ?> break;
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case 'cmi.core.student_name' :
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<?php
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$who=$_user ['firstName']." ".$_user ['lastName'];
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echo "{ result='$who'; }";
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?> break;
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case 'cmi.core.lesson_location' : result=''; break;
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case 'cmi.core.total_time' : result='0000:00:00.00';break;
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case 'cmi.core.score._children' : result='raw,min,max'; break;
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case 'cmi.core.score.raw' : result=score; break;
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case 'cmi.core.score.max' : result='100'; break;
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case 'cmi.core.score.min' : result='0'; break;
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case 'cmi.core.score' : result='0'; break;
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case 'cmi.core.credit' : result='credit'; break;
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case 'cmi.core.lesson_mode' : result='normal'; break;
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case 'cmi.suspend_data' : result=''; break;
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case 'cmi.launch_data' : result=''; break;
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case 'cmi.objectives._count' : result='0'; break;
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default : result=''; break;
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}
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if (alerts>0) { alert("SCORM calls LMSGetValue('"+param+"')\nReturned '"+result+"'"); }
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return result;
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}
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function GetValue(param) {
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return LMSGetValue(param);
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}
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function LMSSetValue(param, val) {
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if (alerts>0) { alert("SCORM calls LMSSetValue('"+param+"','"+val+"')"); }
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switch(param) {
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case 'cmi.core.score.raw' : score= val ; break;
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case 'cmi.core.score.max' : max = val; break;
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case 'cmi.core.score.min' : min = val; break;
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case 'cmi.core.lesson_status' : lesson_status = val; break;
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case 'cmi.completion_status' : lesson_status = val; break; //1.3
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case 'cmi.core.session_time' : session_time = val; break;
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case 'cmi.score.scaled' : score = val ; break; //1.3
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case 'cmi.success_status' : success_status = val; break; //1.3
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}
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return(true);
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}
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function SetValue(param, val) {
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return LMSSetValue(param, val);
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}
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function savedata(origin) { //origin can be 'commit', 'finish' or 'terminate'
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//if( ( lesson_status == 'incomplete') && (score >= (0.8*max) ) ){
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// lesson_status = 'completed';
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//}
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param = 'origin='+origin+'&score='+score+'&max='+max+'&min='+min+'&lesson_status='+lesson_status+'&time='+session_time;
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url="http://<?php
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$self=$_SERVER['PHP_SELF'];
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$url=$_SERVER['HTTP_HOST'].$self;
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$url=substr($url,0,-19);//19 is the length of this file's name (/scormfunctions.php)
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echo $url;
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?>/closesco.php?<?php echo "sco_identifier=$old_s_identifier&file=$file&"; ?>" + param + "";
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scowindow=open(url,'message');
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//the window.location command does not work here !!!!
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//and for some reason if I just call closesco.php without http//..., it does not work either
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if (alerts>1) { alert('saving data : '+url); }
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}
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function LMSCommit(val) {
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if (alerts>0) { alert('LMSCommit() called'); }
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commit = true ;
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savedata('commit');
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return('true');
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}
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function Commit(val) {
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return LMSCommit(val);
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}
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function LMSFinish(val) {
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if (( commit == false ) && (alerts>0)) { alert('LMSFinish() called without LMSCommit()'); }
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if ( commit == true ) {
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if(alerts>0) { alert('LMSFinish() called');}
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savedata('finish');
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}
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return('true');
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}
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function Finish(val) {
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return LMSFinish(val);
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}
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function LMSGetLastError() {
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if (alerts>1) { alert('LMSGetLastError() called'); }
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return(G_LastError);
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}
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function GetLastError() {
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return LMSGetLastError();
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}
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function LMSGetErrorString(errCode){
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if (alerts>1) { alert('LMSGetErrorString() called'); }
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return('No error !');
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}
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function GetErrorString(errCode){
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return LMSGetErrorString(errCode);
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}
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function LMSGetDiagnostic(errCode){
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if (alerts>1) { alert('LMSGetDiagnostic() called'); }
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return(API.LMSGetLastError());
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}
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function GetDiagnostic(errCode){
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return LMSGetDiagnostic(errCode);
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}
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function Terminate(){
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if (alerts>0) { alert('Terminate() called'); }
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commit = true;
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savedata('terminate');
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return (true);
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}
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/* ]]> */
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</script>
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</head>
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<body><i><b>This is an API / API_1484_11 system window. Nothing to be worried about!</b></i></body></html>
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