decodehtml

var decodeEntities = (function() {
    // this prevents any overhead from creating the object each time
    var element = document.createElement('div');

    // regular expression matching HTML entities
    var entity = /&(?:#x[a-f0-9]+|#[0-9]+|[a-z0-9]+);?/ig;

    return function decodeHTMLEntities(str) {
        // find and replace all the html entities
        str = str.replace(entity, function(m) {
            element.innerHTML = m;
            return element.textContent;
        });

        // reset the value
        element.textContent = '';

        return str;
    }
})();