By Bruce W. Perry
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Additional info for Ajax Hacks
XMLHTTP refer to different versions of software components that are a part of Microsoft XML Core Services (MSXML). XMLHTTP, the ActiveXObject wrapper will try to initialize the last known good version of the object that has this program (or "prog") ID. 0, but almost no one these days has that version because it has been updated via Windows Update, IE 6, or another means. 0 was very short-lived. 0 libraries. " Although Microsoft and the engineers on the Mozilla project have chosen to implement this object differently, we will refer to the ActiveX and XMLHttpRequest objects simply as "request objects" throughout this book, because they have very similar functionality.
Com XML Data Feed Hack 32. Use Ajax with a Yahoo! Maps and GeoURL Mash-up Hack 33. Debug Ajax-Generated Tags in Firefox Hack 34. Fetch a Postal Code Hack 35. Create Large, Maintainable Bookmarklets Hack 36. Use Permanent Client-Side Storage for Ajax Applications Hack 37. Control Browser History with iframes Hack 38. Send Cookie Values to a Server Program Hack 39. Use XMLHttpRequest to Scrape an Energy Price from a Web Page Hack 40. Send an Email with XMLHttpRequest Hack 41. Find the Browser's Locale Information Hack 42.
As revealed in this chapter's hacks, it is typical now to submit form data and to build form widgets such as select lists and checkbox groups using server data fetched in the background with XMLHttpRequest. Because the page doesn't have to be completely rebuilt from a server response, the user experiences few application delays. These hacks show how to submit text from form fields and textareas and display server values in those fields, without making the user click a submit button. The hacks also generate various elements, such as select lists and unordered lists, using XMLHttpRequest and data that is dynamically accessed from a server.
Ajax Hacks by Bruce W. Perry