if($("#about_hwork_<%= @work.id%>").children().length > 0){
  $("#about_hwork_<%= @work.id%>").html("");
}
else{
  $(".about_hwork").html("");
  <% if @homework.homework_type == 2%>
    $("#about_hwork_<%= @work.id%>").html("<%= escape_javascript(render :partial => 'programing_work_show',:locals => {:work =>@work,:score =>@score,:student_work_scores => @student_work_scores}) %>");

    var program_name = "text/x-csrc";
    var language = <%= @homework.language %>;
    if (language == 1) {
      program_name = 'text/x-csrc';
    } else if(language==2){
      program_name = 'text/x-c++src';
    }else if(language==3){
      program_name = 'text/x-cython';
    } else if(language==4){
      program_name = 'text/x-java';
    }

    var editor = CodeMirror(document.getElementById("work-code_<%= @work.id%>"), {
          mode: {name: program_name,
            version: 2,
            singleLineStringErrors: false},
          lineNumbers: true,
          indentUnit: 2,
          matchBrackets: true,
      readOnly: true,
      value: $("#work-src_<%= @work.id%>").text()
        }
    );

  <% else%>
    $("#about_hwork_<%= @work.id%>").html("<%= escape_javascript(render :partial => 'show',:locals => {:work =>@work,:score =>@score,:student_work_scores => @student_work_scores}) %>");
  <% end%>
  $('#score_<%= @work.id%>').peSlider({range: 'min'});
}