button shortcode

shortcode.php

/*===========================================================*/
/*	Button
/*===========================================================*/

if ( !function_exists('sdesigns_button') ) {
	function sdesigns_button( $atts, $content = null ) {
		$defaults = array(
			'to' => '#',
			'type' => 'normal'
			);
		extract( shortcode_atts( $defaults, $atts ) );

		if ( $type == 'read' ) {
			return '<button class="button read-book-button" data-open="book-1">'. do_shortcode($content) .'</button>';
		} else if ( $type = 'dotted' ) {
			return '<a href="' . $to . '" class="button dotted-button">'. do_shortcode($content) .'</a>';
		} else {
			return '<a href="' . $to . '" class="button">'. do_shortcode($content) .'</a>';
		}

	}
	add_shortcode( 'button', 'sdesigns_button' );
}