OK, here is what the and if and buts about the ExtJS . A lot of people ask about how and if and but of the Ext JS
Even before you can write your first ExtJS Hello world example, you will have to first download the ExtJS Library file - and that is not a free lunch. For this, you need to
go to the Sencha Download page. Enter your email next to where it
says "Please provide an email address below to download a 45-day commercial evaluation of Sencha Ext JS."
You can follow the ExtJS tutorial here.
A link to the download file is emailed to you.
Another alternative is to use Ext JS 4.1.1a which is available under the GPLv3 for open source projects. This Tutorial is based upon
the open source version. Note that you will be required to keep all the source codes that you develop open. As an example, all the code
in this tutorial are open and can be viewed by anyone, it qualifies for the GPLv3.
The download file is big at 45 MB. Unzipping it gives you a directory that is about 205 MB. The biggest among these is a docs subdirectory - that
contains the documents. You do not need that.
Save file
You can save the file on your server in the same directory as your current html file, but it is better if you save in a subdirectory prototype.
You will have to specify your source accordingly.
