How do I return an elements class in jQuery?

I would like to send the class of an element to a function. Basically, I need to tell showAjaxLoader() that it should show the loading icon for the element being clicked!

jQuery(function($) {
    var showAjaxLoader = function(selector) {
        $(selector).empty().html('<img src="loading.gif" />');
        };

 开发者_C百科   $(".add")
        .bind("ajax:beforeSend", function(event, data, status, xhr) {
            var class = this.class;
            showAjaxLoader(class);
    });
});

class is a reserved word in Javascript, so you can't use it as a variable name. It's not available as a property of an element: you need to use the className property instead.

jQuery(function($) {
    var showAjaxLoader = function(message) {
            alert(message)
        };

    $(".add")
        .bind("ajax:beforeSend", function(event, data, status, xhr) {
            var className = this.className;
            showAjaxLoader(className);
    });
});