var request1;
var request2;
var request3;
var request4;
var topics=-1;
//window.onload=onloadhelp();

function onloadhelp()
{
    request3=makeObject();		
	request3.open('get', 'listquestions.php?topic=1');
    request3.onreadystatechange = topicsonload;
    request3.send('');
	
	request4=makeObject();		
	request4.open('get', 'listquestions.php?question=1');
    request4.onreadystatechange = questiononload;
    request4.send('');
	
	
}			
   

function topicsonload()
{
    if(request3.readyState == 4)
    {
	  
	   topics=7;	 
       var answer=request3.responseText;
	   document.getElementById('topic'+7).innerHTML=answer;
	}
}	
	
	 
function  questiononload()
{
    if(request4.readyState == 4)
    {
       var answer=request4.responseText;
	  // alert(answer);
	   document.getElementById('question').innerHTML=answer;
	}
}		 
	   
	  
   
function makeObject()
{
	var x;
	var browser = navigator.appName;
	if(browser == "Microsoft Internet Explorer")
	{
		x = new ActiveXObject("Microsoft.XMLHTTP");
	}
	else
	{
		x = new XMLHttpRequest();
	}
	return x;
}

function listtopic(topic)
{ 

          if(topics!=-1)
		     hidetopic(topics);
		  
            topics=topic;
				
    	    request1=makeObject();		
			request1.open('get', 'listquestions.php?TopicId='+topic);
            request1.onreadystatechange = topicss;
           	request1.send('');
}			


function topicss()
{
  if(request1.readyState == 4)
  {
    var answer=request1.responseText;
	document.getElementById('topic'+topics).innerHTML=answer;
	
  }
}  

function hidetopic(topics)
{     
	document.getElementById('topic'+topics).innerHTML="<table></table>";
  
}

function listquestion(topicid,questionid)
{
        request2=makeObject();		
	    request2.open('get', 'listquestions.php?TopicId='+topicid+'&QuestionId='+questionid);
        request2.onreadystatechange = questions;
        request2.send('');
  
}  

function questions()
{
  if(request2.readyState == 4)
  {
    var answer=request2.responseText;
    document.getElementById('question').innerHTML=answer;
	
  }
}