var evaluation_form_changed = false;

$(document).ready(function() {
   
    $("#evaluation-form :input").change(function(){ 
        evaluation_form_changed = true; 
    });

    $("#evaluation-submit-btn").click(function(){
        evaluation_form_changed = false;
    });

    window.onbeforeunload = function() { 
      if (evaluation_form_changed) {
        return 'You have made changes to your tour evaluation. Are you sure you want to leave?';
      }
    }

    $("#evaluation-form :input").focus(function(){
        $(this).parent("li").addClass("focused");
    });
 
    $("#evaluation-form :input").blur(function(){
        $(this).parent("li").removeClass("focused");
    });                                       
    
});