[jitter] [lua] what am i doing wrong?

hi there.  working on my first attempt at writing lua code, and also  
i'm an amazingly crappy procedural programmer.  any help on what i'm  
experiencing would be lovely.  special bonus if the question is  
answered by one of my students (ROB)!

i'm getting a "lua pcall error attempt to call a string value" error  
when my jit.gl.lua object tries to read its file.  where's my error?   
(oh, and a line number reference for error messages would be AWESOME,  
please wes)

here's the max patch

---

#P window setfont "Sans Serif" 9.;
#P window linecount 1;
#P message 272 351 30 196617 read;
#P newex 254 424 197 196617 jit.gl.lua bork @file  
josh.planesprinkle.lua;
#P newex 254 381 63 196617 jit.qt.movie;
#P message 134 50 34 196617 reset;
#P newex 134 74 188 196617 jit.gl.handle bork @inherit_transform 1;
#P message 375 135 70 196617 fullscreen \$1;
#P toggle 375 115 15 0;
#P newex 375 92 38 196617 sel 27;
#P newex 375 70 40 196617 key;
#P number 91 41 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P user jit.fpsgui 31 178 60 196617 0;
#P newex 34 269 416 196617 t b b b b b b b b b b b b b b b b b b b;
#P newex 34 245 40 196617 r stuff;
#P toggle 31 47 15 0;
#P newex 128 127 40 196617 s stuff;
#P newex 31 153 201 196617 jit.gl.render bork @erase_color 0. 0. 0. 1.;
#P newex 31 98 58 196617 t b b erase;
#P newex 31 73 57 196617 qmetro 33;
#P newex 375 156 207 196617 jit.window bork @floating 1 @depthbuffer 1;
#P connect 18 0 16 0;
#P fasten 7 9 17 0 237 394;
#P connect 16 0 17 0;
#P connect 7 10 16 0;
#P connect 13 0 0 0;
#P connect 12 0 13 0;
#P connect 11 0 12 0;
#P connect 10 0 11 0;
#P connect 15 0 14 0;
#P connect 2 1 4 0;
#P connect 9 0 1 1;
#P connect 6 0 7 0;
#P connect 3 0 8 0;
#P connect 2 2 3 0;
#P connect 2 0 3 0;
#P connect 14 0 3 0;
#P connect 1 0 2 0;
#P connect 5 0 1 0;
#P window clipboard copycount 19;


and here's josh.planesprinkle.lua

---

render_context = this.drawto

current = 1
vcount = 32

vplanes = {}

function resetplane(i)
     vplanes[i].color = {1., 1., 1., 1.}
     rand1 = (math.random() - .5) * 3.
     rand2 = (math.random() - .5) * 3.
     rand3 = (math.random() - .5) * 3.
     vplanes[i].position = {rand1, rand2, rand3}
     vplanes[i].scale = {.2, .2, 1.}
end

function setup()

     for i=1, vcount do
         vplanes[i] = jit.new("jit.gl.videoplane", render_context)
		vplanes[i].automatic = 0
		vplanes[i].blend_enable = 1
		vplanes[i].depth_enable = 0
		vplanes[i].blend_mode = {6, 1}
		resetplane(i)
     end
end

function draw(theplane)
     vplanes[theplane]:draw()
end

function jit_matrix(name)
     current = current + 1
     if (current > vcount) then
         current = 1
     end
     resetplane(current)
     vplanes.[current]:jit_matrix(name)

end

function bang()
     for i=1, vcount do
         draw(i)
     end
end