Its a well known technique (using border slants), though I enjoyed to implement it by myself as a simple drawing class that works in major browsers. What I want to know, is where it can be used (or maybe it is useless?), and what should I add or change.
Also please check this link: http://www.uselesspickles.com/triangles/demo.html (I found it after I implemented my algorithm)
I use the same method to draw triangles, but a bit more simplified (requires 1 div less per triangle)
I doubt the possibility of emulating canvas tag in ie using this technique, because its very limited compared to canvas (for example, its not possible to draw lines).
This technique can bring cross-browser support of drawing polygons.