Custom_Image_Header::take_action()

	public function take_action() {
		if ( ! current_user_can('edit_theme_options') )
			return;

		if ( empty( $_POST ) )
			return;

		$this->updated = true;

		if ( isset( $_POST['resetheader'] ) ) {
			check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
			$this->reset_header_image();
			return;
		}

		if ( isset( $_POST['removeheader'] ) ) {
			check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
			$this->remove_header_image();
			return;
		}

		if ( isset( $_POST['text-color'] ) && ! isset( $_POST['display-header-text'] ) ) {
			check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
			set_theme_mod( 'header_textcolor', 'blank' );
		} elseif ( isset( $_POST['text-color'] ) ) {
			check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
			$_POST['text-color'] = str_replace( '#', '', $_POST['text-color'] );
			$color = preg_replace('/[^0-9a-fA-F]/', '', $_POST['text-color']);
			if ( strlen($color) == 6 || strlen($color) == 3 )
				set_theme_mod('header_textcolor', $color);
			elseif ( ! $color )
				set_theme_mod( 'header_textcolor', 'blank' );
		}

		if ( isset( $_POST['default-header'] ) ) {
			check_admin_referer( 'custom-header-options', '_wpnonce-custom-header-options' );
			$this->set_header_image( $_POST['default-header'] );
			return;
		}
	}