twitter bootstrap wizard: multiple events handling does not work

I am using twitterbootstrap wizard. I have implemented onTabShow event and onNext event of the wizard according to the examples in the site. Even though OnNext event is fired properly but onTabShow does not fire. Is there any constraint in twitter-bootstrap-wizard i.e. only one wizard event onTabShow(Change/Click) event can be implemented simultaneously?

I figured out what's the problem is.Previously I did the following thing:

var onWizardTabShow=function(tab, navigation, index) {      
    ....
};
var onWizardTabNext=function(tab, navigation, index) {      
    ....
};
$('#rootwizard').bootstrapWizard({
         onTabShow:onWizardTabShow
});
$('#rootwizard').bootstrapWizard({
         onNext:onWizardTabNext
});
$('#rootwizard').bootstrapWizard({
          onTabClick:(tab, navigation, index) {     
    ....
         }
});

Now, instead of binding the events in separate statements, I bind them in one statement.In previous case, only the 1st event binds successfully.

var onWizardTabShow=function(tab, navigation, index) {      
    ....
};
var onWizardTabNext=function(tab, navigation, index) {      
    ....
};
$('#rootwizard').bootstrapWizard({
         onTabShow:onWizardTabShow,
         onNext:onWizardTabNext,
         onTabClick:(tab, navigation, index) {      
    ....
         } 
});