developing slider for sub categories in prestashop

hi,
i would like to get offers for developing slider for sub categories

1. if the number of the sub categories is 5 or less - the sub categories will show as usual - like here :
http://www.allsoft.c...-corel-software

2. if the number of the sub categories is 5 or less - the sub categories will be inside slider

3. the number of the sub categories for showing / not showing inside the slider - will be configurable

thanks