//function Question_check(ques_id,value)
//{
//	var ajaxRequest;  // The variable that makes Ajax possible!
//	try
//	{
//		// Opera 8.0+, Firefox, Safari
//		ajaxRequest = new XMLHttpRequest();
//	} 
//	catch (e)
//	{
//		// Internet Explorer Browsers
//		try
//		{
//			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
//		} 
//		catch (e) 
//		{
//			try
//			{
//				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
//			} 
//			catch (e)
//			{
//				// Something went wrong
//				alert("Please update your browser!");
//				return false;
//			}
//		}
//	}
//	var url="check_score.php?T=" + encodeURIComponent(document.getElementById('T').value) 
//	+ "&PC1="+(document.getElementById('PC1').checked ? 1 : 0) + '&element=' + element;
//	ajaxRequest.open("GET", url, true);
//    ajaxRequest.onreadystatechange = function()
//    {            
//    	switch(ajaxRequest.readyState) 
//    	{
//	        case 4:
//	        	if(ajaxRequest.status!=200) 
//	        	{
//	            	alert("Error:"+ajaxRequest.status); 
//	        	}
//	        	else
//	        	{
//		        	var xml = ajaxRequest.responseXML;
//		            var updateElement = xml.getElementsByTagName("element")[0];
//		            document.getElementById('update' + updateElement.firstChild.nodeValue).innerHTML = '<img src="img/greencheck.jpg" height="20" width="20" alt="Updated">';
//	        	}
//	        	break;
//	        default:
//	            return false;
//	        break;     
//    	}
//  	};	
//	ajaxRequest.send(null);
//}
//function changeColor(obj,color){
//obj.style.backgroundColor = color;
//}
//
//function Question_check(ques_id,value)
//{
//	alert(ques_id);
//	alert(value);
//}

var xmlHttp;
var div;
function Question_check(responseDiv,ques_id,value)
{
	xmlHttp = GetXmlHttpObject();

    if(xmlHttp == null)
    {
        alert("Sorry! Your brower does not support XMLHTTP.");
        return;
    }

    div = responseDiv;

    xmlHttp.onreadystatechange = stateChanged;
    xmlHttp.open("POST","check_score.php?q_id="+ques_id+"&val="+value+" ",true);
    xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    var combine = ques_id + value;
    //var arr = new Array(ques_id,value);
    //alert(arr);
    xmlHttp.send(combine);
}

function stateChanged()
{
    if (xmlHttp.readyState==4)
    {
        var status_message = xmlHttp.responseText;

        var btn_state = status_message.charAt(xmlHttp.responseText.length - 1);

        if(btn_state == '1')
        {
            //window.location = "http://10.2.2.172/register/home.php";
        }
        else
        {
            alert(xmlHttp.responseText.substring(0, status_message.length - 2));
        	//document.getElementById(div).innerHTML = xmlHttp.responseText.substring(0, status_message.length - 2);
        }
   }
}

function GetXmlHttpObject()
{
    if (window.XMLHttpRequest)
    {
        // code for IE7+, Firefox, Chrome, Opera, Safari
        return new XMLHttpRequest();
    }
    if (window.ActiveXObject)
    {
        // code for IE6, IE5
        return new ActiveXObject("Microsoft.XMLHTTP");
    }
    return null;
}

function chkscore()
{
	xmlHttp = GetXmlHttpObject();

    if(xmlHttp == null)
    {
        alert("Sorry! Your brower does not support XMLHTTP.");
        return;
    }

    xmlHttp.onreadystatechange = stateChanged;
    xmlHttp.open("POST","check_score.php?chk_score=true",true);
    xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xmlHttp.send(null);
}