$(function() {

   $('.comment_class').jTruncate({  
   length: CNARL,  
   minTrail: 0,  
   moreText: "[+]more",  
   lessText: "[-]more",  
   ellipsisText: " ...",  
   moreAni: "slow",  
   lessAni: 200  
  });  
  
})