JavaScript Libraries for Ajax

JavaScript libraries exist to perform common operations and to guarantee that code will run on all major browsers.

For example, we can replace the previous showDateAndTime() function with the following:

      function showDateAndTime() {
          new Ajax.Updater("dateDIV",           // DIV to update
                           "dateAndTime.ajax",  // URL
                           { method: "get" });  // HTTP method
      }