ionic1 menonaktifkan tab
<ion-tab id="tab2" disabled="disableTab2" title="Tab2" icon-off='ion-off' icon-on='ion-on' href="#/tab/tab2">
Friendly Hawk
<ion-tab id="tab2" disabled="disableTab2" title="Tab2" icon-off='ion-off' icon-on='ion-on' href="#/tab/tab2">