ThreeState Component Plugin rejected

Hi guys,
I developed a javascript plugin: an HTML component that let user choose between three states, with some customization and API.
But it has been rejected for the “quality standard…”.
I know that the component is not awesome, but I thought that it could be useful.
I don’t know why it’s been rejected, so I would like to have a feedback from you, if it’s possibile.

You can find the demo page here: http://www.gio88oig.it/tsc.

Thanks to all.