No, i got stuck because of some technical things. exactly:
;; javascript (by default) isnt allowing me to upload/work with files which is each in different folder. like map itself is in Map folder, sceneries are in Scenery-gfx folder and textures in Textures folder.
;; drawing triangle gradient polygons fast. html canvas isnt supporting this by default, homever, i resolved this on paper. create six polygons on one place, where every polygon has gradient casted from one vertex colour to transparent colour pointing to neighbour vertexes
;; making polygons have transparent texture gradient. can be done with little math, html5 canvas allows direct manipulation with texture pixels (setting them rgba value)
btw, performance and speed of html canvas: i saw some performance tests and browser can handle shitload of objects even on older pcs