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Created by James on June 30, 2010 20:14:28    Last update: July 03, 2010 18:41:12
The HTML page <!DOCTYPE html> <html> <head> <title>jQu... Client Side Code // called before upload submit function sta... Server Side Code Using Apache Commons FileUpload as example. Upload code (responds to ): final HttpSession session = httpServletRequest... Progress code (responds to ): HttpSession session = httpServletRequest.getSe...
Created by James on June 24, 2010 22:04:19    Last update: June 24, 2010 22:04:19
Start with this page: <!DOCTYPE html> <html> <head> <title>jQu... When you click "Submit", the form submits fine. Now turn the form to a jQuery dialog: <head> <title>jQuery UI Dialog</title> ... When you click "Submit", the form no longer submits! Why? When you convert the contents of the form into a dialog, the form becomes empty! The "Submit" button is no longer associated with the form. Conclusion: you should always put the form tag inside the element you are converting to a dialog.
Created by Fang on April 01, 2010 22:24:58    Last update: April 02, 2010 02:49:38
In this note I'll show you how to create and package a JSP custom tag. The purpose of this tag is to display a random splash image for a home page, among a set of images. We should be able to add or delete candidate splash images from the WAR archive without the need to change the JSP. This is the intended use of the tag: <%@ taglib uri="" prefix... In the above example you provide a set of images named splash*.png (e.g., splash1.png, spalsh2.png, ...), and the tag will pick a random one to display when the JSP is rendered. Let's get started. I'll use Maven for this purpose. Create the standard Maven directory structure ./pom.xml ./src ./src/main ./src/main/jav... pom.xml <project xmlns=""... package tagdemo; import java.util.ArrayList......
Created by James on November 19, 2009 04:55:01    Last update: November 19, 2009 04:55:01
JavaScript <script type="text/javascript"> <!-- if ... CSS <img src="
Created by James on October 11, 2009 21:15:53    Last update: October 11, 2009 21:19:39
Many techniques for making rounded corners do not work well when the element being rounded is displayed on a background with a different color (or multiple colors). Example 1: Nifty Cube with JavaScript <html> <head> <base href="http://www.html.i... Example 2: modx Simple Rounded Corner Box <html> <head> <title>Round Corner</title> ... Example 3: CSS3 (does not work in IE) <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" ... Example 4: This is one that actually works ! The nifty corner technique can be tweaked to be background friendly, although the JavaScript version didn't work for some reason. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" ...
Created by James on July 19, 2009 23:29:42    Last update: July 19, 2009 23:33:24
Existing techniques use background images to make round corners. I present a technique here that uses four foreground images: . I think this technique is easier to understand and use. The only requirements are: Add position: relative to the CSS for the box to be rounded Matching border and color between the box to be rounded and the corner images Here's the HTML with static elements: <!doctype html public '-//W3C//DTD HTML 4.01//EN' ... The markup is even easier if we use jQuery to add the corners dynamically: <!doctype html public '-//W3C//DTD HTML 4.01//EN' ... This is the result:
Created by James on July 05, 2009 02:21:15    Last update: July 05, 2009 02:25:20
This is a JavaScript wrapper for Bare Naked App's progress bar. As usual, download their images and add this to the CSS: img.progressBar { background: white url(images... Then, add my JavaScript function, which takes a parent HTML element as input and returns the progress bar object with a setValue method: function createProgressBar(elem) { var img = d... Test code: <html> <head> <!-- setup code START --> ...
Created by Dr. Xi on April 22, 2007 21:58:45    Last update: January 19, 2009 20:26:12
Your code will be syntax highlighted when you specify the language of your code with the BBcode code tag: [code=lang] Your code here [/code] where "lang" is the language of your code. For example, the following Perl code #!/usr/bin/perl print "Hello World!\n"; is rendered with: [code=perl] #!/usr/bin/perl print "Hel... The following are supported languages and their corresponding names for BBcode: Apache conf: apacheconf, aconf, apache Bash... The full list is available from , which is our backend engine for syntax highlight rendering.
Created by Dr. Xi on September 07, 2008 21:14:46    Last update: September 07, 2008 21:14:46
In the simplest form, JavaScript debugging is simply looking at the JavaScript error messages. For IE, there's a yellow mark at the left bottom screen of the browser when a JavaScript error occurs. For Firefox, you need to enter javascript: in the address bar to see the JavaScript errors. These simple tools aren't enough when your JavaScript s become less simple. For IE, you can use the "Microsoft Script Debugger" or "Microsoft Script Editor", which comes with Microsoft Office. This is a pretty good tutorial on the subject: For Firefox, I use firebug , which not only allows you to debug JavaScript, but also to inspect the HTML, DOM and CSS on the page. I use it a lot to modify the CSS on...
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