var http = null;
if (window.XMLHttpRequest) {
   http = new XMLHttpRequest();
} else if (window.ActiveXObject) {
   http = new ActiveXObject("Microsoft.XMLHTTP");
}

function page(link){
	if (http != null) {
	   http.open("GET", link, true);
	   http.onreadystatechange = seite_ausgeben;
	   http.send(null);
	}
}

function seite_ausgeben() {
   if (http.readyState == 4) {
	document.getElementById("kontakt_formular").innerHTML =http.responseText;
   }
}