var isIE = false;
var req;
function loadDoc(url) {
	try {
    // branch for native XMLHttpRequest object
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
        req.onreadystatechange = processReqChange;
        req.open("GET", url, true);
        req.send(null);
    // branch for IE/Windows ActiveX version
    } else if (window.ActiveXObject) {
        isIE = true;
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
            req.onreadystatechange = processReqChange;
            req.open("GET", url, true);
            req.send();
        }
    }
  } catch(e) {}
}
function processReqChange() {
	  try {
	    if (req.readyState == 4) {
	        if (req.status == 200) {
	            loadContent();
	         }
	    }
    } catch(e) {}
}

function loadContent() {
	  try {
			document.getElementById('content-div').innerHTML = req.responseText;
		} catch(e) {}
}