[jQuery] My first jQuery plugin

[jQuery] My first jQuery plugin


Hi folks,
I'm very new to jQuery and am playing around with what is possible.
I found myself wanting a findParent function and couldn't spot one
ready made. I'd love it if people could give me feedback on my
implementation. I'm sure there's plenty I could do better. If this
function also exists I'd like to know where it is too. =)
/**
* return the first parent that matches the selector. Optionally
include the src element in the search
*/
$.fn.findParent = function()
{
    var _this, _selector, _includeSelf, _result;
    function find(index, elem)
    {
        if (!_includeSelf) elem = elem.parentNode;
        while (elem)
        {
            if ($(elem).is(_selector)) return _result.push(elem);
            elem = elem.parentNode;
        }
    }
    function _findParent(selector, includeSelf)
    {
        var thisp = _this = this;
        _selector = selector;
        _includeSelf = includeSelf;
        _result = [];
        this.each(find);
        var retObj = $(_result);
        retObj.end = function () { return thisp };
        return retObj;
    }
    return _findParent;
}();
Cheers,
Pete