if</span> strcmp( keypressed, <span class="string">'b'</span> );
0344         colormap( <span class="string">'summer'</span> );
0345     <span class="keyword">elseif</span> strcmp( keypressed, <span class="string">'c'</span> );
0346         colormap( <span class="string">'winter'</span> );        
0347     <span class="keyword">end</span>
0348 
0349     <a href="#_sub3" class="code" title="subfunction update_display()">update_display</a>
0350     
0351 <span class="keyword">end</span>
0352 <span class="keyw