function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function BuildURL()
{

 var url=window.location.toString();
    var Index1=url.indexOf("?");
    var Index2=url.indexOf("#");
    var redirect;
    var bool;
    if(Index1!=-1)//if there is no errors in page
       { redirect=url.substring("?",Index1);
       bool=true;
       }
    if(bool==true)
        { if(redirect.indexOf("#")!=-1)
            {
            redirect=redirect.substring("#",Index2);
            }
          }
    else
    {
        if(Index2!=-1)
        redirect=url.substring("#",Index2);
    }
    if(Index2==-1 && Index1==-1)
        redirect=url;               
    return redirect;
}


function ValidateAnswers(CorrectArr,numQuestion,numItems,temp)
{

	var flag=true;  
	var flag2=false;  
	var iError=0;  
	var mistake=new Array(numQuestion);
	var correct= new Array(numQuestion);
	var answersid=new Array(numQuestion);
	var errors;
	errors=0;
	correct =CorrectArr.toString().split(",");

	for(i=0;i< correct.length && correct[i]!=0;i++)
	{
		//if the answer isn't correct display link to explain .
		if(document.getElementById(correct[i].toString()+i.toString()).children[0].checked==false)
		{
			flag=false; 
			for(var c=1; c<5&&flag==false;c++)
			{
				if(document.getElementById(c.toString()+i.toString()).children[0].checked==false)  
					flag=false;  
				else
				{  
				mistake[i]="true";
				answersid[i]="mark"+c.toString()+i.toString();
//					mistake[iError]="row"+i.toString();  
//					iError+=1;  
					flag=true;  
				} 
			}  
				if(flag==false)//if there is questions that uhe user dont answered of them
				{
					flag2=true;  
					document.getElementById(i.toString()+"errMsg").style.display="block";
				}
				else 
					document.getElementById(i.toString()+"errMsg").style.display="none";
		}
		   else 
		   {
		        document.getElementById(i.toString()+"errMsg").style.display="none";
		        mistake[i]="false";
		   }  
	} 

   if(flag2==false)
   
   {  //if user answered of all questions
		for(var m=0;m<mistake.length&&mistake[m]!=null;m++)
		{ 
		    if(mistake[m]=="true")
			{
			    document.getElementById("row"+m.toString()).style.display='block';  
			    document.getElementById(answersid[m]).setAttribute('class','errorAnswer');
			     document.getElementById(answersid[m]).setAttribute('className','errorAnswer');
			    errors+=1;
			 }
			 else
			 {
			 document.getElementById(correct[m].toString()+m.toString()).children[1].style.color="#6c9a1c";
			 document.getElementById("mark"+correct[m].toString()+m.toString()).setAttribute('class','correctAnswer');
			 document.getElementById("mark"+correct[m].toString()+m.toString()).setAttribute('className','correctAnswer');
			 }
		}   
		
	if (numItems >  temp+1 )  
		{
		document.getElementById("next").style.display='block';  
		document.getElementById("end").style.display='block';  
		}
	else  
		document.getElementById("end").style.display='block';  
	document.getElementById("check").style.display='none';  

	for(var z=0;z<correct.length&&correct[z]!="0";z++)
	{
	     document.getElementById("1"+z.toString()).children[0].disabled=true;
	     document.getElementById("2"+z.toString()).children[0].disabled=true;
	     document.getElementById("3"+z.toString()).children[0].disabled=true;
	     document.getElementById("4"+z.toString()).children[0].disabled=true;
	}
	
	document.getElementById("msg").style.display='none';  
	return errors;
	}  
	else  
	 document.getElementById("msg").style.display='block'; 
	 return -1;
	 
	  
}