function popperplus(thisUrl,thisWindow,thisWidth,thisHeight,thisTop,thisLeft) {
 optionString = ('width=' + thisWidth + ',height=' + thisHeight + ',top=' + thisTop + ',left=' + thisLeft + ',status=no,menubar=no,resizable=no,scrollbars=no');
 mainWin = window.open(thisUrl,thisWindow,optionString);
}


    var http_request = false;

    function macheRequest(url) {
        http_request = false;

        if (window.XMLHttpRequest) { // Mozilla, Safari,...
            http_request = new XMLHttpRequest();
            if (http_request.overrideMimeType) {
                http_request.overrideMimeType('text/xml');
                // zu dieser Zeile siehe weiter unten
            }
        } else if (window.ActiveXObject) { // IE
            try {
                http_request = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e) {
                try {
                    http_request = new ActiveXObject("Microsoft.XMLHTTP");
                } catch (e) {}
            }
        }

        if (!http_request) {
            alert('Ende :( Kann keine XMLHTTP-Instanz erzeugen)');
            return false;
        }
        http_request.onreadystatechange = alertInhalt;
        http_request.open('GET', url, true);
        http_request.setRequestHeader('Content-Type','text/xml');
        http_request.send(null);

    }

    function alertInhalt() {

        if (http_request.readyState == 4) {
            if (http_request.status == 200) {
                document.getElementById('newslettertext').innerHTML = http_request.responseText;
            } else {
                alert('Bei dem Request ist ein Problem aufgetreten.');
            }
        }

    }
    
    // get form values
	function getFormValues(fobj){
    		var str='';
    		for(var i=0;i< fobj.elements.length;i++){
    			if(fobj.elements[i].type=='radio' ||fobj.elements[i].type=='checkbox'){
    				
    			}	
    			else str+=fobj.elements[i].name+'='+ escape(fobj.elements[i].value)+'&';
    		}
    		str=str.substr(0,(str.length-1));
    		return str;
		}