function contour3d(z,plane,pos,fill,N)
% Plots contours on 3D plots
%
% Short Description:						 
% Plots contours on planes of 3D plot
%
% Usage: 	contour3d(z,plane,pos,fill,n)
% Example: 	contour3d(peaks,'xz',5,1,3)
% Inputs:
% (1) z - contour data (2D matrix)
% (2) plane - plane to plot on: 'xy', 'yz', 'xz' (string)
% (3) pos - position on remaining axis 
% (4) fill - filled / not filled flag (1/0)
% (5) N - number of contour lines (optional)
% Outputs:
% None
%
% For Matlab 5.3 (Compiler 2.0)		 
% File: contour3d.m/contour3d.dll						 
% Copyright (c) Igor Kagan					 
% kigor@tx.technion.ac.il
% http://igoresha.virtualave.net
% Last modified 05.08.00

error('This function is implemented as a mex file')