$(document).ready(function(){
   $('.expander').each(function(i) {
     $(this).css('display','none');
     var morelink = $('<div class="colapsed">Dal&#353;&#237;&#8230;</div>');
     $(this).before(morelink);
     morelink.bind('click', 
       { e : $(this) }, 
       function(event){
         var e = event.data.e;
         e.slideToggle('slow',function(){
	   if($(this).is(':hidden')) {
	     morelink.attr('class','colapsed');
	   } else {
	     morelink.attr('class','expanded');
	   }
         });
     });
   });
});