function findParentNode(el, elName, elClass, elId) {
    while(el.nodeName != 'BODY') {
        if(
            (!elName || el.nodeName == elName) &&
            (!elClass || el.className.indexOf(elClass) != -1) &&
            (!elId || el.id == elId))
        {
            break;
        }
        el = el.parentNode;
    }
    return el;
}

function elementToggleHide(el, persistent, elementFinder) {
    if(!elementFinder) {
        var obj = el;
    }
    else {
        var obj = elementFinder(el);
    }
    if(obj.className.indexOf('hidden') == -1) {
        obj.className += ' hidden';
        var shown = 0;
    }
    else {
        obj.className = obj.className.replace(new RegExp(' ?hidden'), '')
        var shown = 1;
    }

    if(persistent == true) {
        new cookie('hide:' + obj.id, 1, (shown ? -1 : 356), '/').set();
    }
}


function elementCookieHide(id) {
    var obj  = document.getElementById(id);
    var cook = new cookie('hide:' + id).read();
    if(cook != null) {
        elementToggleHide(obj, false);
    }
}

function filterByParent(elCollection, parentFinder) {
    var filteredCollection = [];
    for(var i = 0; i < elCollection.length; ++i) {
        var findParent = parentFinder(elCollection[i]);
        if(findParent.nodeName != 'BODY') {
            filteredCollection.push(elCollection[i]);
        }
    }
    return filteredCollection;
}

/*
    All this is here just so that IE gets to handle oversized blocks
    in a visually pleasing manner. It does a browser detect. So sue me.
*/