Parsing Text Not Working In 3D Projection Script?

The problem is I have a script that draws 3d models that are in the OBJ Wavefront format onto the canvas. I have narrowed the problem I have down to a small section of the code, the code creates an array within an array to store the X,Y and Z co-ordinates, there is also some code that stores the linking of the vertices. The arrays are as arranged as follows:

coordinate
0
X
Y
Z
1
2
3 etc.

the vertices linking array is as above but with point 1 and point 2 as opposed to X,Y and Z. Within the array X,Y and Z (and also points 1 and 2 in their array) are numbered 0,1 and 2.

the code is this (I'll show it in context):
function drawmodel() {
var coordinate = new Array();
var edges = new Array();

[Code]....