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Disable keys using JQuery

Disabling keys with JQuery is extremely easy, for example the next code will accept only digits for the specified elements, another set of keys will be missed!



where 48 is the decimal ascii representation for zero (0) and 57 for nine (9). Here the table.

Internet Explorer for Development in Leopard!

Good news for those who need to test how an application is rendered in Internet Explorer 6 while using Mac OS X, ies4osx is a great application that lets you emulate the browser without installing Windows in your Mac!!

mysql gem on debian

This post will show you how to install the mysql ruby gem on Debian Sarge.

First try:

sudo gem install mysql

problems?

ok, 

2nd try:

sudo gem install mysql -- --with-mysql-config

Maybe you'll get the following output:

Building native extensions.  This could take a while...
ERROR:  Error installing mysql:
ERROR: Failed to build gem native extension.

/usr/local/bin/ruby extconf.rb install mysql -- --with-mysql-config
extconf.rb:1: command not found: mysql_config --cflags
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Don't panic that means you don't have the libmysqlclient-dev package that contains the mysql_config file, ok let's install it!

apt-get install libmysqlclient15-dev

We're almost done, the final step is to install the gem telling the compiler where to find the mysql_config file, it should be under the /usr/bin/ directory (check it!)

ok, finally let's install the gem!

gem install gem mysql -- --with-mysql-config=/usr/bin/mysql_config

You can check if the gem is propertly installed using irb:

irb

require 'rubygems'
=>true
require 'mysql'
=>true
exit