#3 accept float values

[Stivo]

I had trouble setting up the y-axis of the chart with float values. But I have found the problem now in open-flash-chart.php:

215 function set_y_max( $max )
216 {
217 $this->y_max = intval( $max );
218 }
219
220 function set_y_min( $min )
221 {
222 $this->y_min = intval( $min );
223 }

I changed it to:

215 function set_y_max( $max )
216 {
217 $this->y_max = floatval( $max );
218 }
219
220 function set_y_min( $min )
221 {
222 $this->y_min = floatval( $min );
223 }

And it works without problems.
I use an old version though, so I have not tested this with the new version.
Maybe some other functions could call floatval instead of intval as well.