browser.php
public function isClickable($label)
    {
        return $this->isSubmit($label) || ($this->getLink($label) !== false) || $this->isImage($label);
    }
public function isClickable($label)
    {
        return $this->isSubmit($label) || ($this->getLink($label) !== false) || $this->isImage($label);
    }
Tests to see if a click target exists.

@param string $label    Visible text or alt text.

@return bool         True if target present.