gistfile1.js

function loadXMLDoc(meth,url)
{
var xmlhttp;
if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
} else {// code for IE6, IE5
  	xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function() {
  if (xmlhttp.readyState==4 && xmlhttp.status==200) {
    document.getElementById("output").innerHTML=xmlhttp.responseText;
  }
}
xmlhttp.open(meth, url ,true);
xmlhttp.send();
}