AJAX Asyncronous Javascript and XML

http://events.ccc.de/congress/2006/F...rting_Ajax.pdf Quote: The most important concept could be explained by looking at the following code: var xmlreqc=XMLHttpRequest; XMLHttpRequest = function() { this.xml = new xmlreqc(); return this; } In this example, the reference to XMLHttpRequest native object is saved in a new variable and XMLHttpRequest is readdressed to a new object by using one of the many ways of creating a constructor. Inside the constructor, a new attribute is instantiated as the previously saved real XMLHttpRequest. From now on, every cloned object will be a wrapper clone and not a clone of the original one. What follows is the implementation of wrapper methods for ... Read Full Story

http://events.ccc.de/congress/2006/F...rting_Ajax.pdf Quote: The most important concept could be explained by looking at the following code: var xmlreqc=XMLHttpRequest; XMLHttpRequest = function() { this.xml = new xmlreqc(); return this; } In this example, the reference to XMLHttpRequest native object is saved in a new variable and XMLHttpRequest is readdressed to a new object by using one of the many ways of creating a constructor. Inside the constructor, a new attribute is instantiated as the previously saved real XMLHttpRequest. From now on, every cloned object will be a wrapper clone and not a clone of the original one. What follows is the implementation of wrapper methods for ... Read Full Story

Jorge Ramon, “Ext JS 3.0 Cookbook” Packt Publishing | 2009 | ISBN: 1847198708 | 425 pages | PDF | 3,6 MB Clear step-by-step recipes for antiquity awesome flush internet applications using the Ext JS JavaScript accumulation Master the Ext JS widgets and see to create bespoken components to meet your needs Build striking autochthonous and bespoken layouts, forms, grids, listviews, treeviews, charts, journalism panels, menus, toolbars and much more for your real-world individual interfaces Packed with easy-to-follow examples to training every of the features of the Ext JS accumulation Part of Packt’s Cookbook series: Each instruction is a carefully fashioned ordering of manual to ... Read Full Story

Hi I am trying to build something like a tree menu but not exactly. You click a menu, which then does a ajax request for submenus and then displays them. You can then click on the submenus again and get another level of submenus. My problem is sometimes when click on the submenus it does close the menu or sometimes will keep adding to the existing submenu, menaing it will add an identical copy of the submenu, so you see two of the everything. I am using .live to and then is.hidden to see if the menu is visible. Any thoughts as to how ... Read Full Story

Ext JS provide us with a very flexible ComboBox widget that can be loaded locally or remotely (dynamic loading). You can also load the combo box from the server in response to an event like changing selection of another combo box. In this article I am going to walk you through an example of dynamically loading a ComboBox in a form. For example, we have simple form to add details of country. The fields are country name, population and population type. I will keep the first two fields as normal text fields and population type as a combo box. Upon loading of the form, ... Read Full Story

Hello! I'm stuck in an error while trying to destroy an iframe, and I need some help. Here is what I have: JavaScript Code: <script type= "text/javascript" >   function fileUpload ( form, action_url, div_id ) {       // Create the iframe...      var iframe = document. createElement ( "iframe" ) ;      iframe. setAttribute ( "id" , "upload_iframe" ) ;      iframe. setAttribute ( "name" , "upload_iframe" ) ;      iframe. setAttribute ( "width" , "0" ) ;      iframe. setAttribute ( "height" , "0" ) ;      iframe. setAttribute ( "border" , "0" ) ... Read Full Story

Can a background css image be faded in using jQuery ... I tried putting $(this).fadeIn("slow").css('background-image', 'url(EggA_' + eid + '.gif)'); and it did not work see code below, this flickers when you click on it html Code: <a href="javascript :;" id="egg1" class="eggswap"></a> JavaScript Code: $ ( function ( ) {     var arr = [ "1" , "2" , "3" , "4" , "5" , "6" , "7" , "8" , "9" , "10" , "11" , "12" ] ;     jQuery. each ( arr, function ( ) {         var eid = this ;          ... Read Full Story