var myxmlHttp;
var revid;
var res;
var clickedValue;
function addvote(clickedButton)
{
  if(clickedButton=='Yes'){clickedValue="Yes";}
    if(clickedButton=='No'){clickedValue="No";}
 // document.helpful.submit();
   revid=document.getElementById('rid').value;
 
  getresponseyes(); 
 
 if(res=='1' && clickedButton=='Yes') {document.getElementById('msgbox').style.display=""; }
 if(res=='1' && clickedButton=='No') {document.getElementById('msgbox1').style.display=""; }
 if (res=='0'){document.getElementById('msgboxerr').style.display=""; }
} 
/*
function addno()
{
  document.getElementById('voteval').value="No";

  //document.helpful.submit();
  document.getElementById('msgbox1').style.display=""; 
   
} 

*/
function ajaxFunction()
{
var xmlHttp;

try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    try
      {
      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
    catch (e)
      {
      alert("Your browser does not support AJAX!");
      return false;
      }
    }
  }
 
  return xmlHttp;
  }
function handleResponse()
	{
	if(myxmlHttp.readyState==4)
  		{
  			 res = myxmlHttp.responseText;
			
  		}
	}
function getresponseyes()
{
	 myxmlHttp=ajaxFunction();
	var today = new Date();
	var time=today.getTime();
	var url="http://customer-reviews.safestyle-windows.co.uk/add-vote.php?voteval="+clickedValue+"&reviewid="+escape(revid)+"&t="+time;
	
	myxmlHttp.open("GET",url,false);
	if (typeof window.ActiveXObject != 'undefined' )
	{
	
 	myxmlHttp.onreadystatechange=handleResponse;
	}
	else
	{ myxmlHttp.onload=handleResponse;
	}
	myxmlHttp.send(null); 
}