function createXMLHttpRequest() {
 var ua;
 if(window.XMLHttpRequest) {
 try {
  ua = new XMLHttpRequest();
 } catch(e) {
  ua = false;
 }
 } else if(window.ActiveXObject) {
  try {
	ua = new ActiveXObject("Microsoft.XMLHTTP");
  } catch(e) {
	ua = false;
  }
 }
return ua;
}

function loadStock(c){
          var req= createXMLHttpRequest();
          req.open('GET', 'http://www.redbeach.com.vn/vietnamese/load_forex.php?rnd=' + Math.random(), true);
          req.onreadystatechange = function() {      
               if (req.readyState == 4){
                  response = req.responseText;
                  document.getElementById("forex-results").innerHTML = response;                                    
               }
          };
          req.send(null);
}