function val1() { 
	if(document.getElementById("chguideline1").checked == true && document.getElementById("chguideline3").checked == true) {
		document.getElementById("chguideline1").checked = false;
		alert("You can't check 'Guidelines still needed to be worked out' and 'Guidelines available?' at the same time.");
	}
	if(document.getElementById("chguideline1").checked == false && document.getElementById("chguideline2").checked == true) {
		document.getElementById("chguideline1").checked = true;
		document.getElementById("chguideline2").checked = true;
		alert("You can't check 'Answer according to guidelines?' and not check 'Guidelines available?'");
	}
}
function val2() { 
	if(document.getElementById("chguideline1").checked == false && document.getElementById("chguideline2").checked == true) {
		document.getElementById("chguideline2").checked = false;
		alert("You can't check 'Answer according to guidelines?' and not check 'Guidelines available?'");
	}
}
function val3() { 
	if(document.getElementById("chguideline1").checked == true && document.getElementById("chguideline3").checked == true) {
		document.getElementById("chguideline3").checked = false;
		alert("You can't check 'Guidelines still needed to be worked out' and 'Guidelines available?' at the same time.");
	}
}
function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_setTextOfTextfield(objName,x,newText) { //v3.0
  var obj = MM_findObj(objName); if (obj) obj.value = newText;
}
function seturl(objName,x,newText) { //v3.0
  var obj = MM_findObj(objName); if (obj) obj.href = newText;
}
function MM_setTextOfLayer(objName,x,newText) { //v4.01
  if ((obj=MM_findObj(objName))!=null) with (obj)
    if (document.layers) {document.write(unescape(newText)); document.close();}
    else innerHTML = unescape(newText);
}
function ajaxrequest(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.send(null);
}
function makeRequest(itemm,layer,url) {
	url = url+'&item='+itemm;
	var http_request = false;
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			http_request.overrideMimeType('text/xml');
			// See note below about this line
		}
	} 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('Giving up :( Cannot create an XMLHTTP instance');
		return false;
	}
	http_request.onreadystatechange = function() { divContents(layer,http_request); };
	http_request.open('GET', url, true);
	http_request.send(null);
}
function divContents(layer,http_request) {
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			MM_setTextOfLayer(layer,'',http_request.responseText)
		} else {
			alert('There was a problem with the request.');
		}
	}
}
function MM_setTextOfLayer(objName,x,newText) { //v4.01
  if ((obj=MM_findObj(objName))!=null) with (obj)
    if (document.layers) {document.write(unescape(newText)); document.close();}
    else innerHTML = unescape(newText);
}
function goto_optionfield(targ,selObj,restore){ 
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}