function ln_lv1(){
	
document.write('<p><img src="../../shared/img/ln/title_lv1_topics.gif" alt="Topics" width="155" height="28"></p>');
document.write('<ul>');
document.write('<li class="cl_lv1_01"><a href="../installation_case/index.php"><img src="../../shared/img/ln/bt_lv1_installation_cases.gif" alt="Installtation Cases" width="155" height="21" border="0"></a></li>');
document.write('<li class="cl_lv1_02"><a href="../events/index.html"><img src="../../shared/img/ln/bt_lv1_events.gif" alt="Events" width="155" height="21" border="0"></a></li>');
document.write('<li class="cl_lv1_03"><a href="../user_comments/index.html"><img src="../../shared/img/ln/bt_lv1_user_comments.gif" alt="User Comments" width="155" height="21" border="0"></a></li>');
document.write('<li class="cl_lv1_04"><a href="../engineer_interviews/index.html"><img src="../../shared/img/ln/bt_lv1_engineer_interviews.gif" alt="Engineer Interviews" width="155" height="21" border="0"></a></li>');
document.write('</ul>');
}