function change(button) {
	
	var nav = document.getElementById('nav').getElementsByTagName("ul")[0];
//nav.setAttribute("ID",button); 
nav.id = button;
processAjax("tabs/"+ button  + ".html");
}
// JavaScript Document
function processAjax(url) {
    

    if (window.XMLHttpRequest) { // Non-IE browsers
      req = new XMLHttpRequest();
      req.onreadystatechange = targetDiv;
      try {
        req.open("GET", url, true);
      } catch (e) {
        alert(e);
      }
      req.send(null);
    } else if (window.ActiveXObject) { // IE
      req = new ActiveXObject("Microsoft.XMLHTTP");
      if (req) {
        req.onreadystatechange = targetDiv;
        req.open("GET", url, true);
        req.send();

      }
    }
  return false;
}

function targetDiv() {
    if (req.readyState == 4) { // Complete
          if ((req.status == 0) || (req.status == 200)) { // OK response
              document.getElementById("content").innerHTML = req.responseText;
          } else {
            alert("Problem: " + req.statusText);
          }
    }
} 
$(document).ready(function(){
  change('websites_lst')
});