| Basic principles: | |
| Check boxes can be selected in any order | |
| Boxes are dynamically “greyed out” to exclude invalid combinations | |
| | |
| Logic operations: | |
| product class | single selection (= OR search) |
| processing method | single selection (= OR search) |
| filler type | single selection (= OR search) |
| product properties | multiple selection (= AND search) |
| between categories | multiple selection (= AND search) |
| | |
| Functions: | |
| number of available products: nn go to results page | displays the results within a categorized list |
| form reset | empty all check boxes, back to initial setting |
| back | return from results page to previous query |
