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WP Slider Captcha
v1.2.0 · by captbrogers
An anti-spam captcha using jQuery's UI slider. After the position of the slider is past 60% (default), it will enable the submit button.
About this plugin
An anti-spam captcha using jQuery’s UI slider. After the position of the slider is past 60% (default), it will enable the submit button. This will replace the input button specified as the submit button, if JavaScript is not enabled the button will show as expected.