Inserted elements do not use the event

Inserted elements do not use the event

Hi,

i've got this simple code:

$(function() {
   
   $('.qty').blur(function(){
      // get current qty value
      var qtyValue = $(this).attr("value");

      // populate the bonus value with the qty value
      $(this).next().val(qtyValue);
      
      // debug
      console.info("Valor do QTY:" + qtyValue);
      //console.info($(this).next());   
   });
   
   $('#addmore').click(function(){
      $('<tr><td><input class="qty" size="10" /><input size="10"/></td></tr>').appendTo('table#tabela');
   });
   
});


the problem is that when i click the button ["#addmore"] it creates the new element.. but they dont respond to the blur event.

why???