var tsf = $('.tsf-wizard-1').tsfWizard({
stepEffect: 'basic',
stepStyle: 'style1',
navPosition: 'top',
stepTransition: true,
showButtons: true,
showStepNum: true,
height: '300px' ,
disableSteps: 'after_current' //all | after_current | before_current | none
});
tsf.goto(2);