Answers for "disappend by element"

javascript remove element

//remove a dom element
var element = document.getElementById("someId");
	element.parentNode.removeChild(element);

//remove element from array
var colors=["red","green","blue","yellow"];
var blue=colors.splice(2, 1);//first arg is array index to remove
//colors is now ["red","green","yellow"]

delete div based on select

$('#record_nav ul li').on('click', function(e){
      $('#record_nav ul li.selected').removeClass('selected');
      $(this).addClass('selected');
      $('.content').hide();
      var id = $(this).data('target');
      $(id).show();
  });