Hide Detail /Show Detail on Grid

1) Create Button HideDetail--> Action On Click -- JavaScrip Execute 

var gridView = apex.region("emp").widget().interactiveGrid("getViews").grid;

["NOTES","ONLEAVE","HIREDATE","DEPTNO","RATING"].forEach(function(c) {

    gridView.view$.grid("hideColumn", c);

});

$("#showDetailsBtn").show(); // Static ID 

$("#hideDetailsBtn").hide(); //Static ID

2) Create Button ShowDetail --> Action On Click -- JavaScript Execute

var gridView = apex.region("emp").widget().interactiveGrid("getViews").grid;

["NOTES","ONLEAVE","HIREDATE","DEPTNO","RATING"].forEach(function(c) {

    gridView.view$.grid("showColumn", c);

});

$("#showDetailsBtn").hide();// Static ID 

$("#hideDetailsBtn").show();// Static ID