Change the text content in one element.

changeText.js

    /**
     * Change only the text content of some element
     *
     * @method  changeText
     * @param   element     {Object}    Element
     * @param   text        {String}    New text
     * @param   prepend     {Boolean}   If set to true, the text will be prepended to the element
     * @return {Boolean}    True if the change was successfull, false if not
     */
    function changeText(element, text, position) {
        try {
            var $elem = element;

            element
                .contents()
                .filter(function() {
                    return this.nodeType === 3
                })
                .remove();

            if(position === true) {
                $elem.prepend(text);
            } else {
                $elem.append(text);
            }
            return true;
        } catch (e) {
            return false;
        }
    }