Replaced \intersectpaths and \intersectbeziers by a single command \psintersect, which can compute intersections between all combinations of bezier and path.
Use a 'name' parameter to save different intersections.
Added option 'saveintersections' to save all intersections as PSTricks nodes.
Replaced \showbezier and \showpath with a single \psshowcurve
Added an example using two \psplot