function pop(file,breite,hoehe) {
    popwindow = window.open('popup.php?file='+file+'',"kroebeln","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, width="+breite+", height="+hoehe+", top=280, left=450");
    popwindow.focus();
    return false;
}

var shift=2;

function UnCryptMailto(s) {
	var n=0;
	var r="";
	for(var i=0; i < s.length; i++) {
		n=s.charCodeAt(i);
		if (n>=8364) {
            n = 128;
        }
        r += String.fromCharCode(n-(shift));
	}
	return r;
}

function linkTo_UnCryptMailto(s) {
	location.href="mailto:"+UnCryptMailto(s);
}

function changePageTitle(what) {
	var titel = document.title;
	alert(titel);
	document.title += " "+what;
}

function changeVisibility(what) {
	if(document.getElementById(what).style.display == "none") {
		document.getElementById(what).style.display="block";
	} else {
		document.getElementById(what).style.display="none";
	}
}

function showhideform(){
	if(document.getElementById("showhideform").firstChild.nodeValue == "Eintrag schreiben"){
		document.getElementById("showhideform").firstChild.nodeValue = "Formular ausblenden";
		document.getElementById("entryform").style.display="block";
		document.getElementById("name").focus();
	}else{
		document.getElementById("showhideform").firstChild.nodeValue = "Eintrag schreiben";
		document.getElementById("entryform").style.display="none";
	}
}