A tiny jquery plugin that adds a close link to an alert div

alert.js

(function($){

 	$.fn.extend({ 
 		
		//pass the options variable to the function
 		alert: function(options) {

			//Set the default values
			var defaults = {
				pull: 'right',
				callback: function () {}
			}

			var options =  $.extend(defaults, options);

    			return this.each(function() {
				var opts = options;
				
                		// assign current alert to a variable
                		var alertbox = $(this),
                	    	    closeLink = '<a href="#" class="icon-close pull-' + opts.pull + '">&times;</a>';

                		// remove any existing close icons
                		$(this).find(".icon-close").remove();
                
                		$(this).prepend(closeLink).on('click', function (e) {
					e.preventDefault();
					$(this).closest(".alert").fadeOut(200, function () {
						$(this).remove();
						
						if (typeof defaults.callback == 'function') {
							defaults.callback.call(this);
						}
					});
                		});            

   			});
    		}
	});

})(jQuery);