function ajax_toggle_cover(cover_num){
         
      $('cover_td').setStyle({ height: $('main_cover').getHeight() });
      $('main_cover').hide();
	  $('main_cover_loading').show();
      
	  new Ajax.Updater(
	    'main_cover', 
		'ajax.php', 
        { method: 'get', 
          parameters: 'type=1&cover_id='+cover_num+'&'+Math.random(), 
		  onComplete: function () { 
            $('main_cover_loading').hide();
            $('main_cover').appear();
			$('cover_td').setStyle({ height: $('main_cover').getHeight() });
          } 
        }
      );
	  
   }
   
   function ajax_toggle_showcase(case_num_new){
      
	  case_num = case_num_new;
	  
	  $('pm_vitrina_1').hide();
	  $('pm_vitrina_2').hide();
	  $('pm_vitrina_3').hide();
	  $('pm_vitrina_4').hide();
	  $('pm_vitrina_5').hide();
	  
	  $('pm_vitrina_'+case_num).appear();
	  
   }
   
   function ajax_toggle_showcase_auto(){
      
	  case_num = ( 4<case_num*1 ) ? 1 : case_num*1+1;
	  
	  $('pm_vitrina_1').hide();
	  $('pm_vitrina_2').hide();
	  $('pm_vitrina_3').hide();
	  $('pm_vitrina_4').hide();
	  $('pm_vitrina_5').hide();
	  
	  $('pm_vitrina_'+case_num).appear();
	  
   }
   
   function ajax_toggle_video(case_num){
      
	  $('pm_video_1').hide();
	  $('pm_video_2').hide();
	  $('pm_video_3').hide();
	  
	  $('pm_video_'+case_num).show();
	  
   }
   
   function ajax_toggle_social(case_num){
      
	  $('pm_social_1').hide();
	  $('pm_social_2').hide();
	  $('pm_social_3').hide();
	  
	  $('pm_sn_td_1').className = 'social';
	  $('pm_sn_td_2').className = 'social';
	  $('pm_sn_td_3').className = 'social';
	  $('pm_sn_td_4').className = 'social';
	  $('pm_sn_td_5').className = 'social';
	  
	  $('pm_social_'+case_num).show();
	  $('pm_sn_td_'+case_num).className = 'social_sel';
	  
   }
   
   function ajax_toggle_comments(){
      
	  if( document.getElementById('pm_comments_tabs_all').style.display==='' ){
	     
		 document.getElementById('pm_comments_tabs_all').style.display = 'none';
		 document.getElementById('pm_comments_tabs_my').style.display = '';
		 
		 document.getElementById('pm_comments_all').style.display = 'none';
		 document.getElementById('pm_comments_my').style.display = '';
		 
	  }
	  else{
	     
		 document.getElementById('pm_comments_tabs_all').style.display = '';
		 document.getElementById('pm_comments_tabs_my').style.display = 'none';
		 
		 document.getElementById('pm_comments_all').style.display = '';
		 document.getElementById('pm_comments_my').style.display = 'none';
		 
	  }
	  
   }
   
   function ajax_toggle_blogs(){
      
	  if( document.getElementById('pm_blogs_tabs_new').style.display==='' ){
	     
		 document.getElementById('pm_blogs_tabs_new').style.display = 'none';
		 document.getElementById('pm_blogs_tabs_views').style.display = '';
		 
		 document.getElementById('pm_blogs_new').style.display = 'none';
		 document.getElementById('pm_blogs_views').style.display = '';
		 
	  }
	  else{
	     
		 document.getElementById('pm_blogs_tabs_new').style.display = '';
		 document.getElementById('pm_blogs_tabs_views').style.display = 'none';
		 
		 document.getElementById('pm_blogs_new').style.display = '';
		 document.getElementById('pm_blogs_views').style.display = 'none';
		 
	  }
	  
   }