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Created by James on September 20, 2012 10:22:58
Last update: September 20, 2012 10:22:58
This is a simple jQuery placeholder plugin that can be used on both text and password fields. I've been using the Mathias Bynens plugin for a while and it has been quite useful. I decided to create my own plugin because of two problems: The interaction between the Mathias Bynens plugin and jQuery validation can be quite intricate. Placeholder text is lost once the input field gets focus. This can be a problem when I want to auto-focus on a field, say user id on a log in form. I must mention that although it worked for me, this plugin has not been thoroughly tested. Feel free to provide feedback if you see problems.
(function($) { $.fn.placeholder = function(... Since it uses absolute positioning, you...
Created by Captain on November 22, 2010 04:34:37
Last update: July 22, 2012 20:36:26
HDTV modeline example:
1920x1080 148.5 1920 2008 2052 2200 1080 1084 1088...
MythTV modeline database: http://www.mythtv.org/wiki/Modeline_Database
<!DOCTYPE html>
<html>
<head>
<style ...
Reference:
Custom Resolutions on Intel Graphics
Created by Dr. Xi on June 06, 2009 18:31:44
Last update: June 25, 2012 12:37:35
You can use the system call from the os module to execute an external program:
>>> import os
>>> os.system(the_command_line_st...
However, the path to the executable contains a space character, the system call treats the strings after the first space as arguments, causing an error.
Python doc recommends the use of the subprocess module:
The subprocess module provides more powerful facilities for spawning new processes and retrieving their results; using that module is preferable to using this function.
For example, using wget to get the google home page:
>>> from subprocess import Popen, PIPE
>>> (out...
or
>>> import subprocess
>>> subprocess.call(['cur...
Created by James on May 03, 2012 14:54:46
Last update: May 03, 2012 14:54:46
History.js gracefully supports the HTML5 History/State APIs (pushState, replaceState, onPopState) in all browsers. For HTML4 browsers it will revert back to using the old onhashchange functionality. All major browsers are supported.
This is a simple test page to get started:
<html>
<head>
<title>Test History</title>
...
Note: state url must be provided for IE to generate a unique hash. YOu can prefix the state url with '?' ('#' does not work).
Created by James on April 24, 2012 13:50:05
Last update: April 24, 2012 13:50:05
The this object can be changed when calling a JavaScript function with func.call(theObject) . This is an example:
<!DOCTYPE html>
<html>
<head>
<title>jQu...
The JavaScript console logs:
[Global log] this is: [object Window]
[log.cal...
Created by Fang on April 16, 2012 13:32:10
Last update: April 16, 2012 13:32:10
There are two steps to create a custom function for JSP:
Declare the function in the TLD:
<?xml version="1.0" encoding="UTF-8" ?>
<taglib...
Implement the function (must be static):
package com.example;
public class UrlTransl...
To use the function:
<%@ taglib uri="http://www.example.com/jsp/tags" p...
Created by James on February 02, 2012 09:20:22
Last update: February 02, 2012 09:20:22
This example came from the jQuery validation documentation. The required rule can be used to validate a required selection box when you set the value of the first option to empty.
<!DOCTYPE HTML>
<html>
<head>
<scrip...
The error message is the title since no error message is specified. A more fully defined validation check would look like this:
$('#my-form').validate({
errorElement: "p",
...
Created by James on January 26, 2012 21:23:56
Last update: January 26, 2012 21:23:56
In an HTML page, elements can overlap because of position styles. When there's an overlap, elements coming later in the HTML code are displayed on the top. This can be altered by specifying z-index in the CSS. Elements with higher z-index are placed on the top.
However , z-index only works for elements that are not static positioned. Static positioned elements are always at the bottom compared to relative , fixed and absolute positioned elements.
This is a test page:
<!DOCTYPE html>
<html>
<head>
<style t...
Effects of z-index can be tested by adding it to the elements, for example:
<div id="bg" class="big" style="z-index: 3"></div>...
Created by James on November 27, 2011 16:02:11
Last update: November 27, 2011 16:02:11
This is an example that uses the XSLTProcessor jQuery plugin for client side XSLT. Unfortunately it didn't work in IE or Chrome. It worked in Firefox but somehow disable-output-escaping="yes" was ignored.
<!DOCTYPE html>
<html xmlns="http://www.w3.org/...
Created by James on September 23, 2010 20:30:55
Last update: November 16, 2011 14:51:23
jQuery button set where one button can be pressed "down" at a time.
<!DOCTYPE html>
<html>
<head>
<title>jQu...
