//SCORM2004

function Scorm2004(){
	this.SCORM_API = null;
	this.APIVersion = "";
	this.scoStartTime = 0;
}


Scorm2004.prototype.fGetAPI = function(win){
	if ((win.parent != null) && (win.parent != win)){
		this.SCORM_API = this.fFindAPI(win.parent);
	}
	if ((this.SCORM_API == null) && (win.opener != null)){
		this.SCORM_API = this.fFindAPI(win.opener);
	}
	return this.SCORM_API;
}

// function searches for an object named API_1484_11
Scorm2004.prototype.fFindAPI = function(win){
	var nFindAPITries = 0;
	var maxTries = 500;
	while ((win.API_1484_11 == null) && (win.parent != null)&& (win.parent != win)){
		nFindAPITries++;
		if (nFindAPITries > maxTries){
			return null;
		}
		win = win.parent;
	}
	return win.API_1484_11;
}

Scorm2004.prototype.fGetError = function(){
	var errorCode = this.SCORM_API.GetLastError();
	var errorString = "";
	if(errorCode == 0){
		errorString = "NoError";
	}else{
		errorString = this.SCORM_API.GetErrorString(errorCode);
	}
	return errorString
}

Scorm2004.prototype.fInitialize = function(){
	var result = this.SCORM_API.Initialize("");
	return result;
}

Scorm2004.prototype.fCommit = function(){
	var result = this.SCORM_API.Commit("");
	return result;
}

Scorm2004.prototype.fFinish = function(){
	var result = this.SCORM_API.Terminate("");
	return result;	
}

Scorm2004.prototype.fGetValue = function(variableName){
	var result = this.SCORM_API.GetValue(variableName);
	return result;
}

Scorm2004.prototype.fSetValue = function(variableName, valueString){
	var result = this.SCORM_API.SetValue(variableName, valueString);
	return result;
}

Scorm2004.prototype.fStartTimer = function(){
	scoStartTime = new Date().getTime();
}


Scorm2004.prototype.fCalculateTime = function(){
	var formattedTime;
	if ( scoStartTime != 0 ){
		var scoFinishTime = new Date().getTime();
		var elapsedSeconds = ( (scoFinishTime - scoStartTime) / 1000 );
		formattedTime = this.fGetTotalDuration( elapsedSeconds );
	}else{
		formattedTime = "0000:00:00.0";
	}
	return formattedTime
}

Scorm2004.prototype.fGetTotalDuration = function(totalSeconds){
	var strTime="PT";
	var Hour = Math.floor(totalSeconds/3600);
	var Min = Math.floor((totalSeconds-Hour*3600)/60);
	var Sec = totalSeconds-Hour*3600 - Min*60;
	Sec=this.fSetDecimalPoints(Sec)
	if(Hour<10){
		strTime+="000";
	}else if (Hour<100){
		strTime+="00";
	}else if (Hour<1000){
		strTime+="0";
	}else{
		Hour=9999
	}
	strTime+= Hour + "H";
	if(Min<10){
		strTime+="0";
	}
	strTime+= Min + "M";
	if(Sec<10){
		strTime+="0";
	}
	strTime+= Sec+"S";
	return strTime;
}

Scorm2004.prototype.fSetDecimalPoints = function(num){
	var Numvalue = String (Math.round(num * 100) / 100);
	var dot = Numvalue.indexOf(".");
	if(dot == -1){
		Numvalue += ".0";
	}
	var temp = Numvalue.split(".");
	var addDecimals = 2 - temp[1].length;
	for(i=1; i<= addDecimals; i++){
		Numvalue += "0";
	}
	return Numvalue;
};