[jQuery] problem with function

[jQuery] problem with function

well, it is an rather weird, thing this error...So i start the code add a breackpoint on the following line :
----------------
activateForm();
----------------
getPostContent = function(){
              $("div#tripwire").empty();
    $.post("list.php",{"id":2,"sessionID":sessionID,"getValue":1},function(html){
            $("div#tripwire").append(html);
        });
      activateForm();
        enableSave();
}
everything works fine, but once i remove it, nothing works anymore...anyone got an idea...i'll put the activate form code here...
activateForm = function(){
  //attach listeners to form
       $("input#text").keyup(function(){
         $("#live").empty().append($(this).val());
       });
}
and enable save
enableSave = function(){
      $("a#save").click(function(){
       alert($("input#text").val());
      $.post("list.php",{"value":$("input#text").val() ,"sessionID":sessionID},function(html){
            $("#text").empty();
          });
          return false;
        });
       
}
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