jquery_has_attr.js

/*
 * Original Source: http://stackoverflow.com/questions/1318076/jquery-hasattr-checking-to-see-if-there-is-an-attribute-on-an-element
 * 
 * jQuery add-on to check if an element has an attribute.
 */
 
jQuery.fn.hasAttr = function(name) {
    return typeof this.attr(name) === typeof undefined || this.attr(name) === false;
};