var xmlhttp;
function getHtml(key,host,div)
{	
	var hostname = host;
	var request = hostname+"/widget/iWidget.php";
	request=request+"?key="+key+"&frm=iframe&div="+div+"&host="+hostname;
	var head = document.getElementsByTagName("head").item(0);
    var script = document.createElement("script");		
    script.setAttribute("type", "text/javascript");
    script.setAttribute("src", request);
    head.appendChild(script);
}
getHtml(key,host,div);