var YHGB0008="";
var iNum=13;
var iMax=11;
var speed = 15000;
var dx = new Array();
var dops = new Array();
var dans = new Array();
var YHGB00010=0;
var YHGB00012=0;
var dg=true;
/*
dx[0] = 2;
dx[1] = 7;
dx[2] = 9;
dx[3] = 1;
dx[4] = 4;
dx[5] = 6;
dx[6] = 10;
dx[7] = 3;
dx[8] = 8;
dx[9] = 11;
dx[10] = 5;
dx[11] = 12;


dans[0] = iNum * dx[0];
dans[1] = iNum * dx[1];
dans[2] = iNum * dx[2];
dans[3] = iNum * dx[3];
dans[4] = iNum * dx[4];
dans[5] = iNum * dx[5];
dans[6] = iNum * dx[6];
dans[7] = iNum * dx[7];
dans[8] = iNum * dx[8];
dans[9] = iNum * dx[9];
dans[10] = iNum * dx[10];
dans[11] = iNum * dx[11];
*/


var iTimerCounter=0;
var iCounter=-1;
var danstemp = new Array();
var TimerID=null;
var TimerIDHint=null;
var TimerIDHideResult=null;
var iCurrScore=0;
var iRedZone=0;
var sDivBodySave="";
var sDivHeaderSave="";
var YHGB0009 = speed;
var YHGB00011 = speed;
var sTimerSave="";
var sMsgSave="";
var YHGB00012Save=0;

//dans[0] = 52;
//dans[1] = 91;
//dans[2] = 117;
//dans[3] = 65;
//dans[4] = 78;
//dans[5] = 26;
//dans[6] = 130;
//dans[7] = 39;
//dans[8] = 13;
//dans[9] = 78;

/*
for (ij = 0; ij < iMax; ij++) 
	danstemp[ij] = -1;
*/

function YHGB0001()
{
	//window.alert(document.getElementById("idYHGB0001").innerHTML);
	document.getElementById("tablebody").style.color="black";
	document.getElementById("divMessage").innerHTML=sMsgSave;
	if (document.getElementById("idYHGB0001").innerHTML=="Expert")
	{
		speed = 0;
		YHGB00010=0;
		YHGB00012=1;
		document.getElementById("idYHGB0001").innerHTML="Learning";
		document.getElementById("idYHGB0001").title="Click here to switch to Expert Mode";
		if (TimerID!=null)
		{
			window.clearTimeout(TimerID);
			TimerID=null;
		}
	}
	else
	{
		speed = 12000;
		YHGB00010=1;
		YHGB00012=0;
		document.getElementById("idYHGB0001").innerHTML="Expert";
		document.getElementById("idYHGB0001").title="Click here to switch to Learning Mode";
		if (TimerIDHint!=null)
		{
			HideClickAnswer();
		}
	}	
	YHGB0009=speed; 
	iTimerCounter=speed+1; 
	QuickYHGB0004();
	if (iCounter>=0)
		iCounter--;
	YHGB0006();
	//document.getElementById("txtAns").focus();		
}

function YHGB0003()
{
	try
	{
		document.getElementById("txtAns").value="";
	}
	catch(err)
	{
		if (dg) document.write("[YHGB0003]"+err.description);
	}
}

function YHGB0002()
{
	try{
		document.getElementById("txtAns").value=dans[iCounter];
		window.clearTimeout(TimerIDHint);
		TimerIDHint=null;
	}
	catch(err)
	{
		if (dg) document.write("[YHGB0002]"+err.description);
	}
}

function DisplayNum(sNum)
{
	var thiscontrol=document.getElementById("txtAns");
	try{
		if (thiscontrol.value.length<thiscontrol.maxLength)
		{
			thiscontrol.value=thiscontrol.value+sNum;
		}
		thiscontrol.focus();
	}
	catch(err)
	{
		if (dg) document.write("[DisplayNum]"+"["+sNum+"]"+err.description);
	}	
}

function HideClickAnswer()
{
	try{
		if (TimerIDHint!=null)
		{
			window.clearTimeout(TimerIDHint);
			TimerIDHint=null;
		}
		document.getElementById("idClickAnswer").innerHTML="";
		if (YHGB00012==0)
			document.getElementById("idClickAnswerImage").style.display="none";
		else
			document.getElementById("idClickAnswerImage").style.display="inline";
	}
	catch(err)
	{
		if (dg) document.write("[HideClickAnswer]"+err.description);
	}
}


function DisplayClickAnswer()
{	
	document.getElementById("idClickAnswer").innerHTML="<font face='Arial' size='2'>Answer is:<br></font><font size='7' color='#808000'>"+dans[iCounter]+"</font><br><font face='Arial' size='2'>Remember this answer and type in the White box.</font>";
	document.getElementById("idClickAnswerImage").style.display="none";
	TimerIDHint=setTimeout("HideClickAnswer()", 7000);
	document.getElementById("txtAns").focus();
}

function Init()
{
	try{
		if (speed<=10)
			document.getElementById("idTimer").innerHTML="<b>Timer:</b> Off";
		sDivBodySave=document.getElementById("divbody").innerHTML;
		sDivHeaderSave=document.getElementById("divHeader").innerHTML;
		sTimerSave="<b>Time Left: </b><span id=\"idTimeLeft\">0</span> seconds";
		sMsgSave=document.getElementById("divMessage").innerHTML;
		YHGB00011 = speed;
		YHGB00012Save=YHGB00012;
		if (YHGB00012==0)
		{
			document.getElementById("idClickAnswerImage").style.display="none";
			document.getElementById("idClickAnswer").style.display="none";
		}
		else
		{
			document.getElementById("idClickAnswerImage").style.display="inline";
			document.getElementById("idClickAnswer").style.display="inline";
			document.getElementById("idClickAnswerImage").style.visibility="visible";
			document.getElementById("idClickAnswer").style.visibility="visible";			
		}
		if( document.captureEvents && Event.KEYUP ) 
		{ 
			document.captureEvents( Event.KEYUP ); 
			document.onkeyup = YHGB0005;
		}
		document.getElementById("idCurrOptions").innerHTML=YHGB0008;
	}
	catch(err)
	{
		if (dg) document.write("[Init]"+err.description);
	}	
}

function QuickYHGB0004()
{
	try{
		if (speed<=10)
			document.getElementById("idTimer").innerHTML="<b>Timer:</b> Off";
		else
			document.getElementById("idTimer").innerHTML=sTimerSave;
		if (YHGB00012==0)
		{
			document.getElementById("idClickAnswerImage").style.display="none";
			document.getElementById("idClickAnswer").style.display="none";
		}
		else
		{
			document.getElementById("idClickAnswerImage").style.display="inline";
			document.getElementById("idClickAnswer").style.display="inline";
			document.getElementById("idClickAnswerImage").style.visibility="visible";
			document.getElementById("idClickAnswer").style.visibility="visible";			
		}
	}
	catch(err)
	{
		if (dg) document.write("[QuickYHGB0004]"+err.description);
	}	
}

function YHGB0004()
{
	try{
		document.getElementById("idCurrOptions").innerHTML=YHGB0008;
		YHGB00012=YHGB00012Save;
		speed=YHGB00011;
		YHGB0009 =YHGB00011;
		iTimerCounter=0;
		iCounter=-1;
		document.getElementById("divbody").innerHTML=sDivBodySave;
		document.getElementById("divHeader").innerHTML=sDivHeaderSave;
		document.getElementById("idnumpad").style.visibility="visible";		
		document.getElementById("idCurrOptions").style.visibility="visible";

		if (speed<=10)
			document.getElementById("idTimer").innerHTML="<b>Timer:</b> Off";
		else
			document.getElementById("idTimer").innerHTML=sTimerSave;
		
		danstemp[0] = 0;
		danstemp[1] = 0;
		danstemp[2] = 0;
		danstemp[3] = 0;
		danstemp[4] = 0;
		danstemp[5] = 0;
		danstemp[6] = 0;
		danstemp[7] = 0;
		danstemp[8] = 0;
		danstemp[9] = 0;
		danstemp[10] = 0;
		danstemp[11] = 0;

		if( document.captureEvents && Event.KEYUP ) 
		{ 
			document.captureEvents( Event.KEYUP ); 
			document.onkeyup = YHGB0005;
		}

		if (YHGB00012==0)
		{
			document.getElementById("idClickAnswerImage").style.display="none";
			document.getElementById("idClickAnswer").style.display="none";
		}
		else
		{
			if (document.getElementById("idClickAnswerImage"))
			{
				document.getElementById("idClickAnswerImage").style.display="inline";
				document.getElementById("idClickAnswerImage").style.visibility="visible";
			}
			if (document.getElementById("idClickAnswer"))
			{
				document.getElementById("idClickAnswer").style.display="inline";
				document.getElementById("idClickAnswer").innerHTML="";
				document.getElementById("idClickAnswer").style.visibility="visible";			
			}
		}

		if (TimerID!=null)
		{
			window.clearTimeout(TimerID);
			TimerID=null;
		}
		if (TimerIDHint!=null)
		{
			window.clearTimeout(TimerIDHint);
			TimerIDHint=null;
		}
		iCurrScore=0;
		iRedZone=0;
		//window.alert(iTimerCounter);
		Display();
		document.getElementById("txtAns").focus();		
		
	}
	catch(err)
	{
		if (dg) document.write("[YHGB0004]"+err.description);
	}	
}

function Display()
{
	try{
		document.getElementById("numtop").innerHTML=iNum;
		document.getElementById("numfixed").innerHTML=iNum;

		if (iTimerCounter>=speed && iTimerCounter<99999 && speed>0 && speed-iTimerCounter<1000)
		{			
			iRedZone=0;
			NextNow();
			return;
		}

		//window.alert(iTimerCounter);
		if (iCounter==-1 || iTimerCounter>=speed)
		{
		
			if (speed>0 && speed-iTimerCounter<1000)
			{
				if (iTimerCounter==99999)
					iTimerCounter=YHGB0009;
				iTimerCounter=iTimerCounter+2000;
				YHGB0009=Math.round((YHGB0009+YHGB0009+iTimerCounter)/3000)*1000;
				if (YHGB0009<1000)
					YHGB0009=1000;
				if (YHGB00010==1)
					speed=YHGB0009;
			}

			iTimerCounter=0;
			if (iCounter>=0)
			{
				danstemp[iCounter]=document.getElementById("txtAns").value;
				if (danstemp[iCounter]=="")
					danstemp[iCounter]="No Answer";
				if (danstemp[iCounter]==dans[iCounter])
					iCurrScore++;	
			}

			iCounter++;
		
			document.getElementById("currScore").innerHTML=iCurrScore;
			document.getElementById("currTotalScore").innerHTML=(iMax+1);		
		
			document.getElementById("currQ").innerHTML=(iCounter+1);
			document.getElementById("totalQ").innerHTML=(iMax+1);
		
			if (iCounter>iMax)
			{		
				sOut="<br><table style='font-family:Verdana;font-size=12pt'>";
				iResult=0;
				for (i = 0; i <= iMax; ++ i) 
				{
					if (danstemp[i]==dans[i])
					{
						sOut = sOut +"<tr><td align='right'>"+ iNum +"</td><td>"+dops[i]+"</td><td align='right'>" + dx[i] + "</td><td>=</td><td></td><td align='right' style='color:green'><b>" + danstemp[i]+"</b></td></tr>";
						iResult++;
					}
					else
						sOut = sOut +"<tr><td align='right'>"+ iNum +"</td><td>"+dops[i]+"</td><td align='right'>" + dx[i] + "</td><td>=</td><td align='right' style='color:red'>" + "<s>"+danstemp[i]+"</s><td align='right'><b>" + dans[i]+"</td></b></td></tr>";
				}
				sOut=sOut+"</table>";
				document.getElementById("divbody").innerHTML=sOut;
				
				var sMessage="";
				sMessage=sMessage+"<b>Score: </b>" + iResult + "/" + (iMax+1)+"<br>";
				
				if (iResult*100/(iMax+1)>=100)
					sMessage=sMessage+"<span style='color:#006699'>Congratulations </span> You Rock! Keep it up!";
				else if (iResult*100/(iMax+1)>=90)
					sMessage=sMessage+"<span style='color:green'>Wow!</span> you are almost there, you can do it...";
				else if (iResult*100/(iMax+1)>=80)
					sMessage=sMessage+"<span style='color:blue'>Nice!</span>, but need more practice.";
				else
					sMessage=sMessage+"<span style='color:red'>Keep practicing</span>, you can do it...";
				document.getElementById("divHeader").innerHTML="<font face='Arial'><center><b>"+sMessage+"</b></center></font>";
				document.getElementById("divMessage").innerHTML="";
				document.getElementById("idnumpad").style.visibility="hidden";
				
				document.getElementById("idClickAnswer").style.visibility="hidden";
				document.getElementById("idClickAnswerImage").style.visibility="hidden";
				document.getElementById("idCurrOptions").style.visibility="hidden";

				if( document.releaseEvents && Event.KEYUP ) 
					document.releaseEvents(Event.KEYUP);
				
				return;
			}
			else
			{
				iRedZone=0;
				document.getElementById("divMessage").innerHTML="<p align=left>&bull; Type your answer in the white box or Click the numbers on the Number pad.<br>&bull; Press or Click &lt;Enter&gt; to go to the next question.</p>";
				document.getElementById("tablebody").style.color="#000000";			
				document.getElementById("divnum").innerHTML=dx[iCounter];
				document.getElementById("divops").innerHTML=dops[iCounter];
				document.getElementById("txtAns").value="";		
				document.getElementById("txtAns").focus();
				////TimerID=setTimeout("Display()", 1000);
				if (YHGB00012==1)
				{
				/*
					var iHintSpeed=speed/2;
					if (iHintSpeed>3000)
						iHintSpeed=3000;
					TimerIDHint=setTimeout("YHGB0002()", iHintSpeed);
				*/
				}
			}
		}
		if (document.getElementById("idTimeLeft"))
			document.getElementById("idTimeLeft").innerHTML=(speed-iTimerCounter)/1000;
		
		if (((speed-iTimerCounter)<speed/3) || speed-iTimerCounter<=1000)
		{
			if (YHGB00012!=1 && speed>10)
			{
				iRedZone=1;
				document.getElementById("tablebody").style.color="#FF0000";
			}
		}
		
		iTimerCounter=iTimerCounter+1000;
		//window.alert(speed);
		if (speed>10)
			TimerID=setTimeout("Display()", 1000);
	}
	catch(err)
	{
		if (dg) document.write("[Display]"+err.description);
	}		
}

function Validate()
{
			var sAnsTemp=dans[iCounter]+"";
			//window.alert(typeof(dans[iCounter]));number.toString();
			window.alert(window.event.keyCode);
			if (document.getElementById("txtAns").value.length==sAnsTemp.length)
			{				
				if (document.getElementById("txtAns").value==sAnsTemp)
				{
					document.getElementById("txtAns").style.color="green";
				}
				else
				{
					document.getElementById("txtAns").style.color="red";
				}
			}
			else
				document.getElementById("txtAns").style.color="black";
}

function YHGB0005(e)
{
	if (e)
	{
		if (e.which && e.which==13)
		{
			Next("1");	
		}
		else
		{
			//Next("0");	//for Validate
		}
	}
}

function Next(Go)
{
	try
	{
		if ((window.event && window.event.keyCode==13)||Go=="1")
		{
			if (document.getElementById("txtAns").value.length>0)
			{
				NextNow();
			}
		}
		else
		{
			//Validate();
		}
		if (document.getElementById("txtAns"))
			document.getElementById("txtAns").focus();
	}
	catch(err)
	{
		if (dg) document.write("[Next]"+"["+Go+"]"+err.description);
	}			
}

function YHGB0006()
{
	if (TimerIDHideResult!=null)
	{
		window.clearTimeout(TimerIDHideResult);
		TimerIDHideResult=null;
	}	
	document.getElementById("idDisplayResult").innerHTML=""
	document.getElementById("idDisplayResult").style.visibility="hidden";
	YHGB0007();
}

function NextNow()
{
	var sAnsTemp=dans[iCounter]+"";
	if (iRedZone==0)
	{
		document.getElementById("idDisplayResult").style.visibility="visible";
		if (document.getElementById("txtAns").value==sAnsTemp)
		{
			document.getElementById("idDisplayResult").style.color="green";
			document.getElementById("idDisplayResult").innerHTML="<font size='5' face='Arial'>Correct!</font>"
		}
		else
		{
			document.getElementById("idDisplayResult").style.color="red";
			document.getElementById("idDisplayResult").innerHTML="<font size='5' face='Arial'>Wrong.</font>"
		}
		if (TimerIDHideResult==null)
			TimerIDHideResult=setTimeout("YHGB0006()", 1000);
	}
	else
		YHGB0007();
		
}

function YHGB0007()
{
	try{
		//window.alert(window.event.keyCode);
		if (true)//(window.event.keyCode==13||Go=="1")
		{
			if (iRedZone==0)
			{
				if (speed-iTimerCounter<1000)
					iTimerCounter=iTimerCounter+2000;
				YHGB0009=Math.round((YHGB0009+YHGB0009+iTimerCounter)/3000)*1000;
				if (YHGB0009<1000)
					YHGB0009=1000;
				if (YHGB00010==1)
					speed=YHGB0009;

				//iTimerCounter=speed+1;
				iTimerCounter=99999;
				if (TimerIDHint!=null)
				{
					HideClickAnswer();
					//window.clearTimeout(TimerIDHint);
					//TimerIDHint=null;
				}
				if (TimerID!=null)
				{
					//window.alert(TimerID);
					window.clearTimeout(TimerID);
					TimerID=null;
					//window.alert(TimerID);
				}	
				Display();
			}
			else
				document.getElementById("divMessage").innerHTML="&lt;Enter&gt; is disable during <span style='color:red'>Red</span> zone.";
		}
	}
	catch(err)
	{
		if (dg) document.write("[NextNow]"+err.description);
	}			
}