void DisplayVertex()
{
	glColor3f(1.0,1.0,1.0);	
	glLineWidth(1.5);
	glBegin(GL_LINES);	
	trTrack1.DrawTrack();
	glEnd();
}
void DrawTrack()
{		
	glDisable(GL_LIGHTING);
	trkTrack1.DrawTrack();
}