function makeRequest(url,param){
	xmlHttp = false;
	
	if(param != '')
		url = url + "?param=" + param;
		
	// XMLHttpRequest-Instanz erstellen
	// ... für Internet Explorer
	try {
		xmlHttp  = new ActiveXObject("Msxml2.XMLHTTP");
	} 
	catch(e) {
		try {
	   		xmlHttp  = new ActiveXObject("Microsoft.XMLHTTP");
		} catch(e) {
	    	xmlHttp  = false;
		}
	}
	// ... für Mozilla, Opera und Safari
	if (!xmlHttp  && typeof XMLHttpRequest != 'undefined') {
		xmlHttp = new XMLHttpRequest();
	}
	
	if (!xmlHttp) { 
		alert('Es kann kein Request Objekt erzeugt werden.'); 
		return false;
	}
	
	xmlHttp.onreadystatechange = function () {
	    if (xmlHttp.readyState == 4) {
			document.b.Bemerkung.value = xmlHttp.responseText;
		}
	}
	 
	xmlHttp.open('POST', url, true);
	xmlHttp.send(null);
}