hi guys i own blogger templates gallery running on wordpress 2.6 i have alot of categories.divided under main categories. and the user can browse the categories like this: by layout > 1 cloumn | 2 columns | ect........... by category > animals | art | ect........... by colour > red | green | ect........... but the user can't browse 2 or 3 categories at the same time. i mean i saw some wordpress allow users to choose the properties of each main category by checking a box. here is an exsample. the official site for word press looks like my site. you can't choose multiple properties at once. http://wordpress.org/extend/themes/ You can see what i mean in the next exsample site. see the way that we search for a theme: http://dinothemes.com/ i hope you can show me the way to do it or even tutorials. thanx at all.