i am building a web application in code-igniter , i having problem with customizing calendar template. i build a calendar using code-igniter’s calendar library

now i want change template so that day should be listed as follows
1
2
3
.. etc
rather than
1 2 3
4 5 6
can any one tell me how it can be done
Taken from : http://ellislab.com/codeigniter/user-guide/libraries/calendar.html
By creating a calendar template you have 100% control over the design of your calendar. Each component of your calendar will be placed within a pair of pseudo-variables as shown here:
So you have to change your design using different HTML and/or CSS.