Joe Linoff

Joe's Home Page
Using tomorrows technologies to solve yesterdays problems today!
$Id: index.html,v 1.13 2009/12/03 16:01:50 jdl Exp jdl $

Home

Downloads

Color Picker

This is my home page. It is currently under construction because I haven't figured out how to organize it yet.

My intention is to provide useful bits of information about programming and software design based on many years of experience programming in various languages C++, shell scripting (bash), javascript, java, perl, and python in the hopes that it will help the programming community at large.

This a very simple web page built using unobtrusive javascript that has custom defined tab handling and gradient color support. If you are interested in using these techniques, please feel free to download the HTML and the index.js file to study it. In addition, read David Flanagan's book: "Javascript: The Definitive Guide". I found it to be extremely useful. For production sites you would probably want to use one of the publicly available javascript frameworks like JQuery, Dojo or Closure.

Please click here to send me an email. Note that this is done a mildly secure way to deter web bots and spiders. When you rollover the link, the email address does not show up anywhere. You will also not find it by searching the source code. I did this because I got nailed by spiders (and other web creepy crawlies) on my last site. They grabbed my email address and used it to send me SPAM and, much worse, to send other folks SPAM in my name. It was extremely annoying and unethical.

index.css	The CSS file used to setup the display information for index.js.
index.js	The javascript used for controlling the styles and format of this web page. It is a very simple example of the power of unobtrusive javascript but it shows how to create a simple class with variables and functions. It also shows how to register event handlers, iterate over the DOM elements and create forms that do not require a submit button. It defines a simple scheme for recognizing and associating tabs and tab panels as well as a function for defining color gradients. The original HTML only has a few simple attributes that are recognized by the script to make it look nice. See the comments in the script for more details.
man2html.pl	This script converts a man page to HTML format for web viewing. It was written because other man2html programs that I found did not support enough troff constructs. The download is a tar file that contains man2html.pl and support files.
sedit.sh	A bash script that provides secure editing capabilities by wrapping your favorite editor with bzip2 and ccencrypt. It shows some useful bash programming techniques including processing command line arguments, arithmetic, accessing environment variables and writing a simple function. I use this script on linux and on windows under cygwin.

This page allows you to play with color to get RGB values that meet your aesthetic needs. I used it for choosing the colors for this site and found it so useful that I decided to keep it. As you can see, it is very basic.

Enter colors in the input fields below using #nnnnnn format where n is a hexadecimal and press the <Enter> key.

Color 1
Color 2
Color 3
Color 4
Color 5
Color 6

black	#000000	white	#FFFFFF	gray (50%)	#777777
gray1	#EEEEEE	gray2	#DDDDDD	gray3	#CCCCCC
red	#FF0000	blue	#00FF00	green	#0000FF
yellow	#FFFF00	magenta	#FF00FF	cyan	#00FFFF
red1	#DD0000	red2	#BB0000	red3	#990000
green1	#00DD00	green2	#00BB00	green3	#009900
blue1	#0000DD	blue2	#0000BB	blue3	#000099
yellow1	#FFFF44	yellow2	#FFFF88	yellow3	#FFFFCC
DDEEDD	#DDEEDD	ABCDEF	#ABCDEF	FEDBCA	#FEDBCA
EEF1E9	#EEF1E9	E0EDE0	#E0EDE0	E9EEF1	#E9EEF1