var req;
function i(){
try {
req=new ActiveXObject("Msxml2.XMLHTTP"); 
}
catch(e) {
try {
req=new ActiveXObject("Microsoft.XMLHTTP");
}
catch(oc) {
req=null; } }
if(!req&&typeof XMLHttpRequest!="undefined") {
req=new XMLHttpRequest(); 
}
}

function s(k){
i();
if(req!=null){
req.onreadystatechange = p;
req.open("GET", k, true);
req.send(null);
}
}

function p(){
if (req.readyState == 4)
document.getElementById("divDynamic").innerHTML  = req.responseText;
}

s("dynamic_div.html");