text: module.exports = function (graph) {
  
      var clearSelectionMenu = {},
          selectSGButton;
  
      clearSelectionMenu.setup = function () {
  
          selectSGButton = d3.select("#clear-select-sg-button")
              .on("click", function (d) {
                  graph.clearSelectionSubGraph();
              });
      };
  
      clearSelectionMenu.hide = function (flag) {
          if(flag){
              d3.select("#c_clear-select-sg").style("display","none")
          }else{
              d3.select("#c_clear-select-sg").style("display","")
          }
      };
  
  
  
      return clearSelectionMenu;
  };
  
  