ajax实现输入框提示功能

Suggest Framework Copyright (c) 2005-06 Matthew Ratzloff Version 0.31 Overview -------- Suggest Framework allows developers to easily add "suggest" functionality to their websites and projects, which can vastly improve the user experience by speeding up phrase-based searching. Any number of search boxes can be used on a page, each configurable with a variety of options. Suggest Framework is also compatible with nearly all mainstream browsers, including Internet Explorer 5+ (Win/Mac), Firefox (Win/Mac), and Opera 8+. It... sort of works with Safari. Installation ------------ You only need one copy of SuggestFramework.js on your server in order to use it throughout. You can customize the look of the suggest dropdowns with CSS; these styles should be included in your sitewide stylesheet and adjusted per-page if necessary. Note: The JavaScript file has been compressed for speed using Dojo ShrinkSafe, which can be found at <http://alex.dojotoolkit.org/shrinksafe/>. Usage ----- Include the following two lines in the head of the page: <script type="text/javascript" src="/path/to/SuggestFramework.js"></script> <script type="text/javascript">window.onload = initializeSuggestFramework;</script> Now you have five additional attributes available for any named text input field: action The dynamic page that accepts input by GET and returns a JavaScript array of relevant data. Required. capture The column (from 1) that will be captured in the hidden input field. This is useful for storing ID numbers that you don't want the user to see. Hidden fields are automatically created and named the same as the primary field, except that they are preceded with an underscore. For example, if the main input is "example", the hidden input will be called "_example". Optional; default is 1. columns The number of columns to display in the dropdown. For example, you might search for employees by name and display their ID on the right. Optional; default is 1. delay The search delay, in milliseconds. A lower delay increases responsiveness but puts more strain on the server. Optional; default is 1000 (1 second). heading If set to true, uses first array value as a non-selectable header. Useful when you have two or more columns. Optional; default is false. The page that processes the user input (defined in "action") accepts two parameters: type The name of the text input field q The query phrase, encoded in UTF-8 format Suggested examples for PHP and ColdFusion have been included, although any server-side language will work. For more than one column, a multi- dimensional array is expected. For example, new Array(new Array("A1", "B1"), new Array("A2", "B2")); Finally, there are four CSS classes: .SuggestFramework_List The dropdown container .SuggestFramework_Heading The optional dropdown headings .SuggestFramework_Highlighted The highlighted suggestion .SuggestFramework_Normal Non-highlighted suggestions Release History --------------- 0.31 - Fixed a bug in 0.3 that prevented hidden fields from working properly. 0.3 - Bug fixes and feature requests. UTF-8 and hidden field support added. 0.2 - Initial beta release. Revised to be procedural instead of object-oriented in order to increase compatibility. Compatible with Internet Explorer 5+ (Win/Mac), Firefox (Win/Mac), and Opera 8+. Partial compatibility with Safari. 0.1 - Unreleased alpha version. Compatible with Internet Explorer 5.5+ (Win), Firefox (Win/Mac), and Opera 8+. Not compatible with Safari.