$(function() {  

  $('#survey_3 div.button img').click(function(){  
    var thanks = $("#survey_3 input.thank_you").val();  
    var param = $("#survey_3 input").serialize();
    var param2 = $("#survey_3 textarea").serialize();
    var param3 = $("#survey_3 select").serialize();  
    $('#error_mess3').hide().empty().load('inc/post.survey.php?'+param+'&'+param2+'&'+param3, function() { 
      $('#error_mess3').fadeIn(100, function() {
      if(!trim($('#error_mess3').html())) {  
         $('#error_mess3').empty(); 
         $('.leftside').empty().html(thanks); 
        }
      });
    });  
  });

  $('#survey_2 div.button img').click(function(){ 
    var thanks = $("#survey_2 input.thank_you").val();
    var param = $("#survey_2 input").serialize();
    var param2 = $("#survey_2 textarea").serialize(); 
    var param3 = $("#survey_2 select").serialize(); 
    $('#error_mess2').hide().empty().load('inc/post.survey.php?'+param+'&'+param2+'&'+param3, function() { 
     $('#error_mess2').fadeIn(100, function() {
      if(!trim($('#error_mess2').html())) {  
        $('#error_mess2').empty();
        $('.rightside').empty().html(thanks);
        }
      });
    });  
  });
  
  $('#survey_1 div.button img').click(function(){ 
    var thanks = $("#survey_1 input.thank_you").val();
    var param = $("#survey_1 input").serialize();
    var param2 = $("#survey_1 textarea").serialize(); 
    var param3 = $("#survey_1 select").serialize(); 
    $('#error_mess1').hide().empty().load('inc/post.survey.php?'+param+'&'+param2+'&'+param3, function() { 
     $('#error_mess1').fadeIn(100, function() {
      if(!trim($('#error_mess1').html())) {  
        $('#error_mess1').empty();
        $('.containersur').empty().html(thanks);
        }
      });
    });  
  });
   
});

function trim(str) {
  return str.replace(/^\s+|\s+$/g, '');
}