Aweber Opt-in Widget

aweber_widget.php

<?php
/**
 * Aweber widget
 */
class aweber_Widget extends WP_Widget {
	function aweber_Widget() {
		$widget_ops = array( 'classname' => 'aweber', 'description' => 'Displays the aweber opt-in form' );
		$this->WP_Widget( 'aweber', 'Aweber Form', $widget_ops );
	}

	function widget( $args, $instance ) {
		extract( $args, EXTR_SKIP );
		echo $before_widget;
		$title = empty($instance['title']) ? '' : apply_filters('widget_title', $instance['title']);
		if ( !empty( $title ) ) { echo $before_title . $title . $after_title; };
		echo '<p>'.$instance['form_text'].'</p>';
        echo '<form class="aweber_form" method="post" action="http://www.aweber.com/scripts/addlead.pl">';
        echo '<input type="hidden" name="listname" value="'.$instance['list_id'].'" />';
			if (!empty($instance['thanks'])) {
        echo '<input type="hidden" name="redirect" value="'.$instance['thanks'].'" />';
			}
        echo '<input type="hidden" name="meta_adtracking" value="sidebar_form" />';
        echo '<input type="hidden" name="meta_message" value="1" />';
        echo '<input type="hidden" name="meta_required" value="email" />';
        echo '<input type="hidden" name="meta_forward_vars" value="0" />';  
		echo "<input type=\"text\" class=\"name\" name=\"name\" value=\"Your Name\" onfocus=\"if (this.value == 'Your Name') {this.value = '';}\" onblur=\"if (this.value == '') {this.value = 'Your Name';}\" />";
        echo "<input type=\"text\" class=\"email\" name=\"email\" value=\"Your Email\" onfocus=\"if (this.value == 'Your Email') {this.value = '';}\" onblur=\"if (this.value == '') {this.value = 'Your Email';}\" />";
        echo '<input type="submit" class="submit" name="submit" value="'.$instance['submit'].'" />';		
        echo '</form>';
		echo $after_widget;
		?>
        
        <?php }

    /** @see WP_Widget::update */
    function update($new_instance, $old_instance) {				
	$instance = $old_instance;
	$instance['title']	= strip_tags($new_instance['title']);
	$instance['list_id']	= strip_tags($new_instance['list_id']);
	$instance['thanks']	= strip_tags($new_instance['thanks']);
	$instance['submit']	= strip_tags($new_instance['submit']);
	$instance['form_text']	= $new_instance['form_text'];
        return $instance;
    }

    /** @see WP_Widget::form */
    function form($instance) {				
        $instance = wp_parse_args( (array) $instance, array( 
			'title'		=> '',
			'form_text'	=> '',
			'thanks'	=> '',
			'submit'	=> 'Submit',
			'list_id'	=> 'rosshudgenslist',
			) );
		$title		= strip_tags($instance['title']);
		$list_id	= strip_tags($instance['list_id']);
		$thanks		= strip_tags($instance['thanks']);
		$submit		= strip_tags($instance['submit']);
		$form_text	= $instance['form_text'];
        ?>
        <p><label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?>
			<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo isset( $instance['title'] ) ? $instance['title'] : ''; ?>" />
        </label></p>

        <p><label for="<?php echo $this->get_field_id( 'list_id' ); ?>"><?php _e( 'List ID:' ); ?>
			<input class="widefat" id="<?php echo $this->get_field_id( 'list_id' ); ?>" name="<?php echo $this->get_field_name( 'list_id' ); ?>" type="text" value="<?php echo isset( $instance['list_id'] ) ? $instance['list_id'] : ''; ?>" />
        </label></p>

        <p><label for="<?php echo $this->get_field_id( 'thanks' ); ?>"><?php _e( 'Thank You Page URL' ); ?>
			<input class="widefat" id="<?php echo $this->get_field_id( 'thanks' ); ?>" name="<?php echo $this->get_field_name( 'thanks' ); ?>" type="text" value="<?php echo isset( $instance['thanks'] ) ? $instance['thanks'] : ''; ?>" />
        </label></p>

        <p><label for="<?php echo $this->get_field_id( 'submit' ); ?>"><?php _e( 'Button Text' ); ?>
			<input class="widefat" id="<?php echo $this->get_field_id( 'submit' ); ?>" name="<?php echo $this->get_field_name( 'submit' ); ?>" type="text" value="<?php echo isset( $instance['submit'] ) ? $instance['submit'] : ''; ?>" />
        </label></p>

        <label for="<?php echo $this->get_field_id('form_text'); ?>">Opt-In Content:</label>
<textarea class="widefat" cols="30" rows="4" id="<?php echo $this->get_field_id('form_text'); ?>" name="<?php echo $this->get_field_name('form_text'); ?>"><?php echo $form_text; ?></textarea>
        <?php }

} // class 

// register widget

add_action( 'widgets_init', create_function( '', "register_widget('aweber_Widget');" ) );
?>