/**
* generates the HTML image tag to add in a form
* @param string $name unique name for the image
* @return string html tag
*/
public static function image_tag($name = '')
{
return self::reload_image() . '<img alt="captcha" id="captcha_img_' . $name . '" style="cursor: pointer;" title="Click to refresh"
onClick="return reloadImg(\'captcha_img_' . $name . '\');" src="' . captcha::url($name) . '">';
}
