text: //背景选择
  
  $(function () {
      $("#button-bg1").click(function () {
          $("body").css({
              "background": "url('../../assets/img/1.jpg')no-repeat center center fixed"
          });
          changeBg('1.jpg');
  
      });
      $("#button-bg2").click(function () {
          $("body").css({
              "background": "url('../../assets/img/2.jpg')no-repeat center center fixed"
              ,"background-size": "cover"
          });
          changeBg('2.jpg');
      });
      $("#button-bg3").click(function () {
          $("body").css({
              "background": "url('../../assets/img/3.jpg')no-repeat center center fixed"
              ,"background-size": "cover"
          });
          changeBg('3.jpg');
  
      });
      $("#button-bg4").click(function () {
          $("body").css({
              "background": "url('../../assets/img/4.jpg')no-repeat center center fixed"
              ,"background-size": "cover"
          });
          changeBg('4.jpg');
  
      });
      $("#button-bg5").click(function () {
          $("body").css({
              "background": "url('../../assets/img/5.jpg')no-repeat center center fixed"
              ,"background-size": "cover"
          });
          changeBg('5.jpg');
  
      });
      $("#button-bg6").click(function () {
          $("body").css({
              "background": "url('../../assets/img/6.jpg')no-repeat center center fixed"
              ,"background-size": "cover"
          });
          changeBg('6.jpg');
  
      });
      $("#button-bg7").click(function () {
          $("body").css({
              "background": "url('../../assets/img/7.jpg')no-repeat center center fixed"
              ,"background-size": "cover"
          });
          changeBg('7.jpg');
  
      });
      $("#button-bg8").click(function () {
          $("body").css({
              "background": "url('../../assets/img/8.jpg')no-repeat center center fixed"
              ,"background-size": "cover"
          });
          changeBg('8.jpg');
  
      });
      $("#button-bg9").click(function () {
          $("body").css({
              "background": "url('../../assets/img/9.jpg')no-repeat center center fixed"
              ,"background-size": "cover"
          });
          changeBg('9.jpg');
  
      });
      $("#button-bg10").click(function () {
          $("body").css({
              "background": "url('../../assets/img/10.jpg')no-repeat center center fixed"
              ,"background-size": "cover"
          });
          changeBg('10.jpg');
  
      });
      $("#button-bg11").click(function () {
          $("body").css({
              "background": "url('../../assets/img/11.jpg')no-repeat center center fixed"
              ,"background-size": "cover"
          });
          changeBg('11.jpg');
  
      });
      $("#button-bg12").click(function () {
          $("body").css({
              "background": "url('../../assets/img/12.jpg')no-repeat center center fixed"
              ,"background-size": "cover"
          });
          changeBg('12.jpg');
  
      });
      $("#button-bg13").click(function () {
          $("body").css({
              "background": "url('../../assets/img/13.jpg')no-repeat center center fixed"
              ,"background-size": "cover"
          });
          changeBg('13.jpg');
  
      });
      //$('#button-bg8').trigger("click");//默认点击
  
  });
  
  
  /**
   * Background Changer end
   */
  //TOGGLE CLOSE
  $('.nav-toggle').click(function () {
      //get collapse content selector
      var collapse_content_selector = $(this).attr('href');
  
      //make the collapse content to be shown or hide
      var toggle_switch = $(this);
      $(collapse_content_selector).slideToggle(function () {
          if ($(this).css('display') == 'block') {
              //change the button label to be 'Show'
              toggle_switch.html('<span class="entypo-minus-squared"></span>');
          } else {
              //change the button label to be 'Hide'
              toggle_switch.html('<span class="entypo-plus-squared"></span>');
          }
      });
  });
  
  
  $('.nav-toggle-alt').click(function () {
      //get collapse content selector
      var collapse_content_selector = $(this).attr('href');
  
      //make the collapse content to be shown or hide
      var toggle_switch = $(this);
      $(collapse_content_selector).slideToggle(function () {
          if ($(this).css('display') == 'block') {
              //change the button label to be 'Show'
              toggle_switch.html('<span class="entypo-up-open"></span>');
          } else {
              //change the button label to be 'Hide'
              toggle_switch.html('<span class="entypo-down-open"></span>');
          }
      });
      return false;
  });
  //CLOSE ELEMENT
  $(".gone").click(function () {
      var collapse_content_close = $(this).attr('href');
      $(collapse_content_close).hide();
  
  
  });
  
  //tooltip
  $('.tooltitle').tooltip();
  
   