Desing an online plot tool use flot library

Flot is an attractive JavaScript plotting for jQuery, can be download:
http://www.flotcharts.org/

I designed an online plot tool based on flot library, which can be found:
http://swf.site40.net/OnlinePlot/
or
http://www.jiansenlu.zoka.cc/OnlinePlot/

Users can enter and number of points (maximum 20) and data, click "Start Plot" to plot online.