making theme sidebar

hi there
this is not simple sidebar, it’s little bit complex. i’ve pasted following code into my functions.php file:

<?php
    if ( function_exists('register_sidebar') )
        register_sidebar(array(  

        'name' => 'sidebar', 

        'before_widget' => '<div class="templatemo_section">',
        'after_widget' => '</div>',  

        'before_title' => '<span class="templatemo_section_top_right">',
        'after_title' => '</span><div class="templatemo_section_bottom"></div>',
    ));
    ?>

and this is my sidebar.php:

<div id="templatemo_right_section">

            	<div class="templatemo_section">

                	<div class="templatemo_section_top">
                    	<div class="templatemo_section_top_left">

                        </div>
                        <div class="templatemo_section_top_right">
                        </div>
                    </div>
                    <div class="templatemo_section_middle">
                    	<p>

						</p>
                  </div>
                    <div class="templatemo_section_bottom">
                    </div>

                </div><!--  End of section  box-->
            	 <?php if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar("sidebar") ) : ?>
						 <?php endif; ?>

            </div><!--  End of right Section -->
      		<div class="clear"> </div>
        </div><!--  End of Content Area -->

the question that i have is should i use the following code like what i used in my sidebar.php:

<?php if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar("sidebar") ) : ?>