function ajax(nodeId,url)
{
	var xmlHttp = false;
	var node=document.getElementById(nodeId);
	
	// Mozilla, Opera, Safari sowie Internet Explorer 7

	if (typeof XMLHttpRequest != 'undefined') {
	    xmlHttp = new XMLHttpRequest();
	}
	if (!xmlHttp) {
	    // Internet Explorer 6 und älter
	    try {
	        xmlHttp  = new ActiveXObject("Msxml2.XMLHTTP");
	    } catch(e) {
	        try {
	            xmlHttp  = new ActiveXObject("Microsoft.XMLHTTP");
	        } catch(e) {
	            xmlHttp  = false;
	        }
	    }
	}
	if (xmlHttp) {
	    xmlHttp.open('GET', url, true);
	    xmlHttp.onreadystatechange = function () {
	        if (xmlHttp.readyState == 4) 
	        {
	        	var res=xmlHttp.responseText;
        		node.innerHTML=xmlHttp.responseText;		        	
	        }
	    };
	    xmlHttp.send(null);
	}	

}