function readon(id) {
    $('readon'+id).innerHTML = "<p><b>Bitte warten...</b></p>";
    var myAjax = new Ajax.Request(
        "scripts/journal.html",
        { method: 'get', parameters: 'get=moreentry&id='+id, onComplete: writeentry }
        );
}

function writeentry(response) {
    id = response.responseText.substring(0,response.responseText.indexOf("#"));
    text = response.responseText.substring(response.responseText.indexOf("#")+1);
    $('readon'+id).innerHTML = text;
}