// JavaScript Document

// FS SCORM - fscommand adapter for ADL SCORM 1.2 and Flash MX 2004 Learning Interactions
// version 1.0    08/19/03
// Modified by Andrew Chemey, Macromedia
// Significantly modified by Brian Reyman - EchoStar Satellite L.L.C. on 8/24/2004
// -----------------------------------------------------------------
// Change these preset values to suit your taste and requirements.
var g_bShowApiErrors = false; 	// change to true to show error messages
var g_bInitializeOnLoad = true; // change to false to not initialize LMS when HTML page loads
// Translate these strings if g_bShowApiErrors is true
// and you need to localize the application
var g_strAPINotFound = "Management system interface not found.";
var g_strAPITooDeep = "Cannot find API - too deeply nested.";
var g_strAPIInitFailed = "Found API but LMSInitialize failed.";
var g_strAPISetError = "Trying to set value but API not available.";
var g_strFSAPIError = 'LMS API adapter returned error code: "%1"\nWhen FScommand called API.%2\nwith "%3"';
var g_strDisableErrorMsgs = "Select cancel to disable future warnings.";
// Change g_bSetCompletedAutomatically to true if you want the status to
// be set to completed automatically when calling LMSFinish. Normally,
// this flag remains false if the Flash movie itself sets status
// to completed by sending a FSCommand to set status to "completed",
// "passed" or "failed" (both of which imply "completed")
var g_bSetCompletedAutomatically = false;
// This value is normally given by the LMS, but in case it is not
// this is the default value to use to determine passed/failed.
// Set this null if the Flash actionscript uses its own method
// to determine passed/fail, otherwise set to a value from 0 to 1
// inclusive (may be a floating point value, e.g "0.75".
var g_SCO_MasteryScore = null; // allowable values: 0.0..1.0, or null
//==================================================================
// WARNING!!!
// Do not modify anything below this line unless you know exactly what
// you are doing!
// You should not have to change these two values as the Flash template
// presets are based on them.
var g_nSCO_ScoreMin = 0; 		// must be a number
var g_nSCO_ScoreMax = 100; 		// must be a number > nSCO_Score_Min
// Per SCORM specification, the LMS provided mastery score,
// if any, will override the SCO in interpreting whether the score
// should be interpreted when the pass/fail status is determined.
// The template tries to obtain the mastery score, and if it
// is available, to set the status to passed or failed accordingly
// when the SCO sends a score. The LMS may not actually make the
// determination until the SCO has been terminated.
// Default value for this flag is true. Set it to false if don't
// want to predict how the LMS will set pass/fail status based on
// the mastery score (the LMS will win in the end anyway).
var g_bInterpretMasteryScore = true;
// This script implements various aspects of
// common logic behavior of a SCO.
/////////// API INTERFACE INITIALIZATION AND CATCHER FUNCTIONS ////////
var g_nFindAPITries = 0;
var g_objAPI = null;
var g_bInitDone = false;
var g_bFinishDone = false;
var	g_bSCOBrowse = false;
var g_dtmInitialized = new Date(); // will be adjusted after initialize
var g_bMasteryScoreInitialized = false;
function AlertUserOfAPIError(strText) {
	if (g_bShowApiErrors) {
		var s = strText + "\n\n" + g_strDisableErrorMsgs;
		alert("stuff" + s);
		if (!confirm(s)){
			g_bShowApiErrors = false
		}
	}
}
function ExpandString(s){
	var re = new RegExp("%","g")
	for (i = arguments.length-1; i > 0; i--){
		s2 = "%" + i;
		if (s.indexOf(s2) > -1){
			re.compile(s2,"g")
			s = s.replace(re, arguments[i]);
		}
	}
	return s
}

function FindAPI(win) {
	while ((win.API == null) && (win.parent != null) && (win.parent != win)) {
		g_nFindAPITries ++;
		if (g_nFindAPITries > 500) {
			AlertUserOfAPIError(g_strAPITooDeep);
			return null;
		}
		win = win.parent;
	}
	return win.API;
}
function APIOK() {
	return ((typeof(g_objAPI)!= "undefined") && (g_objAPI != null))
}
function SCOInitialize() {
	var err = true;
	if (!g_bInitDone) {
		if ((window.parent) && (window.parent != window)){
			g_objAPI = FindAPI(window.parent)
		}
		if ((g_objAPI == null) && (window.opener != null))	{
			g_objAPI = FindAPI(window.opener)
		}
		if (!APIOK()) {
			AlertUserOfAPIError(g_strAPINotFound);
			err = false
		} else {
			err = g_objAPI.LMSInitialize("");
			if (err == "true") {
				g_bSCOBrowse = (g_objAPI.LMSGetValue("cmi.core.lesson_mode") == "browse");						if (!g_bSCOBrowse) {
					if (g_objAPI.LMSGetValue("cmi.core.lesson_status") == "not attempted") {
						err = g_objAPI.LMSSetValue("cmi.core.lesson_status","incomplete")
					}
				}
			} else {
				AlertUserOfAPIError(g_strAPIInitFailed)
			}
		}
		if (typeof(SCOInitData) != "undefined") {
			// The SCOInitData function can be defined in another script of the SCO
			SCOInitData()
		}
		g_dtmInitialized = new Date();
	}
	g_bInitDone = true;
	return (err + "") // Force type to string
}
function SCOFinish() {
	if ((APIOK()) && (g_bFinishDone == false)) {
		SCOReportSessionTime()
		if (g_bSetCompletedAutomatically){
			SCOSetStatusCompleted();
		}
		if (typeof(SCOSaveData) != "undefined"){
			// The SCOSaveData function can be defined in another script of the SCO
			SCOSaveData();
		}
		g_bFinishDone = (g_objAPI.LMSFinish("") == "true");
	}
	return (g_bFinishDone + "" ) // Force type to string
}
// Call these catcher functions rather than trying to call the API adapter directly
function SCOGetValue(nam)			{return ((APIOK())?g_objAPI.LMSGetValue(nam.toString()):"")}
function SCOCommit()					{return ((APIOK())?g_objAPI.LMSCommit(""):"false")}
function SCOGetLastError()		{return ((APIOK())?g_objAPI.LMSGetLastError():"-1")}
function SCOGetErrorString(n)	{return ((APIOK())?g_objAPI.LMSGetErrorString(n):"No API")}
function SCOGetDiagnostic(p)	{return ((APIOK())?g_objAPI.LMSGetDiagnostic(p):"No API")}
//LMSSetValue is implemented with more complex data
//management logic below
var g_bMinScoreAcquired = false;
var g_bMaxScoreAcquired = false;
// Special logic begins here
function SCOSetValue(nam,val){
	var err = "";
	if (!APIOK()){
			AlertUserOfAPIError(g_strAPISetError + "\n" + nam + "\n" + val);
			err = "false"
	}
	if (err == ""){
			err = g_objAPI.LMSSetValue(nam,val.toString() + "");
			if (err != "true") return err
	}
}
function MillisecondsToCMIDuration(n) {
//Convert duration from milliseconds to 0000:00:00.00 format
	var hms = "";
	var dtm = new Date();	dtm.setTime(n);
	var h = "000" + Math.floor(n / 3600000);
	var m = "0" + dtm.getMinutes();
	var s = "0" + dtm.getSeconds();
	var cs = "0" + Math.round(dtm.getMilliseconds() / 10);
	hms = h.substr(h.length-4)+":"+m.substr(m.length-2)+":";
	hms += s.substr(s.length-2)+"."+cs.substr(cs.length-2);
	return hms
}
// SCOReportSessionTime is called automatically by this script,
// but you may call it at any time also from the SCO
function SCOReportSessionTime() {
	var dtm = new Date();
	var n = dtm.getTime() - g_dtmInitialized.getTime();
	return SCOSetValue("cmi.core.session_time",MillisecondsToCMIDuration(n))
}
// Since only the designer of a SCO knows what completed means, another
// script of the SCO may call this function to set completed status.
// The function checks that the SCO is not in browse mode, and
// avoids clobbering a "passed" or "failed" status since they imply "completed".
function SCOSetStatusCompleted(){
	var stat = SCOGetValue("cmi.core.lesson_status");
	if (SCOGetValue("cmi.core.lesson_mode") != "browse"){
		if ((stat!="completed") && (stat != "passed") && (stat != "failed")){
			//re-set the lesson_location to nul
			SCOSetValue("cmi.core.lesson_location","n");
			return SCOSetValue("cmi.core.lesson_status","completed");
		}
	} else return "false"
}