function CryptMailto() {
        shift = parseInt(document.forms[0].shiftField.value);
        var n=0;
        var r="";
        var s="mailto:"+document.forms[0].emailField.value;
        for(var i=0;i<s.length;i++) {
                n=s.charCodeAt(i);
                if (n>=8364) {n = 128;}
                r += String.fromCharCode(n+shift);
        }
        document.forms[0].cyptedEmailField.value = r;
        document.forms[0].HTMLCyptedEmailField.value = "<a href=\"javascript:linkTo_UnCryptMailto('"+r+"', "+shift+");\">eMail-Link</a>";
}

function UnCryptMailto(s, shift) {
        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, shift)        {
        location.href=UnCryptMailto(s, shift);
}