Hide and show relationship tab depend on classification of Item

hi, i want hide relationship tab depend on classification of item for classification - Equipment - hide 1)AML, 2) CAD File, 3)Documents for classification -Tool- hide 1)AML, 2)Attachments, 3)Documents for other classification -hide 1)Maintenance Plans, 2)MSA, 3)Attachments i able to hide tab but not able to show it again if i open item form it hide 1)Maintenance Plans, 2)MSA, 3)Attachments but when i select classification as Equipment it not show 1) Maintenance Plan 2)Attachement tab (which is hide when item open) i write code to hide and show tab but it not able to show all tab it only show first line of show tab code //hide relationship depend on classification of item

function tryRun() {
    if (!parent.relationships) {
        setTimeout(tryRun, 100);
        return;
    }

    if (parent.relationships.document.readyState != "complete" || !parent.relationships.currTabID) {
        setTimeout(tryRun, 100);
    }
    else {
        var tabbar = parent.relationships.relTabbar;
        if (document.thisItem.getProperty("classification", "") == "Equipment") {
            //
            //for attachement
            tabbar.SetTabVisible('810DEFB14CD44050B599296ADCD99124', 1);
            //for maintainence plan
            // var tabbar2 = parent.relationships.relTabbar;
            tabbar.SetTabVisible('1B836691ECF84263B885EE4CA8427525', 1);
            //for MSA
            tabbar.SetTabVisible('94961F7052D440EB95F0769CD098486A', true);

            parent.relationships.relTabbar.removeTabByLabel("AML");
            parent.relationships.relTabbar.removeTabByLabel("CAD File");
            parent.relationships.relTabbar.removeTabByLabel("Documents");
            parent.relationships.relTabbar.removeTabByLabel("BOM/Item");
            parent.relationships.relTabbar.removeTabByLabel("MSA");

        }
        else if (document.thisItem.getProperty("classification", "") == "Tool") {
            parent.relationships.relTabbar.removeTabByLabel("AML");
            parent.relationships.relTabbar.removeTabByLabel("Attachments");
            parent.relationships.relTabbar.removeTabByLabel("Documents");
            parent.relationships.relTabbar.removeTabByLabel("Maintainence Plans");
            parent.relationships.relTabbar.removeTabByLabel("Tool");
        }
        else {
            //tabbar = parent.relationships.relTabbar;
            tabID = tabbar.GetTabId("Maintainence Plans");
            tabID1 = tabbar.GetTabId("Attachments");
            tabID2 = tabbar.GetTabId("MSA");
            if (tabID) {
                tabbar.SetTabVisible(tabID, false);
            }
            if (tabID1) {
                tabbar.SetTabVisible(tabID1, false);
            }
            if (tabID2) {
                tabbar.SetTabVisible(tabID2, false);
            }

            // parent.relationships.relTabbar.removeTabByLabel("Maintainence Plans");
        }
    }

}
setTimeout(tryRun, 100);

  in equipment condition it only able to reshow attachment tab not maintenance plan tab