Dynamic multiple widget area

custom_widget.php

// Custom Widget Area
if (function_exists('register_sidebar')) {

	register_sidebar(array(
		'name'          => 'Sidebar 1',
		'id'            => 'sidebar1',
		'description'   => 'This is the widgetized sidebar1',
		'before_widget' => '<div id="%1$s" class="widget-container %2$s">',
		'after_widget'  => '</div>',
		'before_title'  => '<h1>',
		'after_title'   => '</h1>'
	));
	register_sidebar(array(
		'name'          => 'Sidebar 2',
		'id'            => 'sidebar2',
		'description'   => 'This is the widgetized sidebar2.',
		'before_widget' => '<div id="%1$s" class="widget-container %2$s">',
		'after_widget'  => '</div>',
		'before_title'  => '<h3>',
		'after_title'   => '</h3>'
	));
}

Insert this code in loop to control of display

<?php if (function_exists('dynamic_sidebar') && dynamic_sidebar('team1')) : else : ?>

<?php endif; ?>