I am using multi month [Datepicker](http://www.eyecon.ro/datepicker/)

i am unable set a date range explicitly.

for eg i have to show sep 1st 2012 to 30 aug 2012 as selected on some button click.

documentation has this method but it only select the start date

`$('selector').DatePickerSetDate(date, shiftTo);`

Thanks in advance.