if( $x ) {
    doStuff( $x, $y, $z );
    doStuff( $x, $z, $y );
}
if( $y ) {
    doStuff( $y, $x, $z );
    doStuff( $y, $z, $x );
}
if( $z ) {
    doStuff( $z, $x, $y );
    doStuff( $z, $y, $x );
}

##</code><code>##

sub doStuff {
   my( $?, $?, $? ) = @_;
   ....
}

##</code><code>##

        gg = _GetGrid( this.Min.y / this.Parent.Zoom.y, this.Max.y / this.Parent.Zoom.y, this.Scale.y );
        if( this.GridDelta.y != 0 ) gg[1] = this.GridDelta.y;
        var ii = 0;
        for( var jj = gg[2]; jj >= gg[0]; jj -= gg[1] ) { 
            pp.y = jj*this.Parent.Zoom.y;
            pp.z = this.Min.z; vv = this.Parent.ScreenPos( pp );
            _OAV( this.Line[4][ii], "from", parseInt( vv.x ) + "," + parseInt( vv.y ) );
            xx = vv.x; yy = vv.y;
            pp.z = this.Max.z; vv = this.Parent.ScreenPos( pp );
            _OAV( this.Line[4][ii], "to", parseInt( vv.x ) + "," + parseInt( vv.y ) );
            _OAV( this.Line[4][ii], "stroke", this.StrokeColor );
            _OAV( this.Line[4][ii], "visibility", "visible" );
            if( this.Parent.Th < 0 ) { 
                _OAV( this.Text[4][ii],"x",Math.floor( xx+( vv.x-xx )*1.06 )-50*uu );
                _OAV( this.Text[4][ii],"y",Math.floor( yy+( vv.y-yy )*1.06 )-7*uu );
            }
            else { 
                _OAV( this.Text[4][ii],"x",Math.floor( vv.x+( xx-vv.x )*1.06 )-50*uu );
                _OAV( this.Text[4][ii],"y",Math.floor( vv.y+( yy-vv.y )*1.06 )-7*uu );
            }
            _OAV( this.Text[4][ii],"color",this.StrokeColor );
            _OAV( this.Text[4][ii],"visibility","visible" );
            if( ( ii == 1 )&&( this.Label.y )) _OAV( this.Text[4][ii],"innerText",this.Label.y );
            else { 
                if( isNaN( this.Scale.y )) { 
                    if( this.Scale.y.substr( 0,9 ) == "function " ) { 
                        ff = eval( "window."+this.Scale.y.substr( 9 ));
                        if( ff ) _OAV( this.Text[4][ii],"innerText",ff( _ScaleString( jj,gg[1] )) );
                    }
                    else _OAV( this.Text[4][ii],"innerText",_ScaleString( jj,gg[1] )+this.Scale.y );
                }      
                else { 
                    if( this.Scale.y<1 ) _OAV( this.Text[4][ii],"innerText","" );
                    if( this.Scale.y == 1 ) _OAV( this.Text[4][ii],"innerText",_ScaleString( jj,gg[1] ));
                    if( this.Scale.y>1 ) _OAV( this.Text[4][ii],"innerText",_DateFormat( jj, gg[1], this.Scale.y ));
                }
            }
            ii++;
        }
        if( this.Min.y<this.Max.y ) { 
            if( this.Parent.Fi >= 180 ) { 
                if( this.Min.y/this.Parent.Zoom.y>gg[0]-gg[1]/3 ) _OAV( this.Text[4][ii-1],"innerText","" ); 
            }
            else { 
                if( this.Max.y/this.Parent.Zoom.y<gg[2]+gg[1]/3 ) _OAV( this.Text[4][0],"innerText","" ); 
            }
        }
        while( ii<11 ) { 
            _OAV( this.Line[4][ii],"visibility","hidden" );
            _OAV( this.Text[4][ii],"visibility","hidden" );  
            ii++;
        }