usage is like this
$this->widget('bootstrap.widgets.TbTypeahead', array(
'model' => $model, // INSTANCE OF MODEL 'User'
'attribute' => 'state', // ATTRIBUTE
'options'=>array(
'name'=>'demo-typeahead',
'source'=>array(
'Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California',
'Colorado', 'Connecticut', 'Delaware', 'Florida', 'Georgia',
'Hawaii', 'Idaho', 'Illinois', 'Indiana', 'Iowa',
'Kansas', 'Kentucky', 'Louisiana', 'Maine', 'Maryland',
'Massachusetts', 'Michigan', 'Minnesota', 'Mississippi', 'Missouri',
'Montana', 'Nebraska', 'Nevada', 'New Hampshire', 'New Jersey',
'New Mexico', 'New York', 'North Dakota', 'North Carolina', 'Ohio',
'Oklahoma', 'Oregon', 'Pennsylvania', 'Rhode Island', 'South Carolina',
'South Dakota', 'Tennessee', 'Texas', 'Utah', 'Vermont',
'Virginia', 'Washington', 'West Virginia', 'Wisconsin', 'Wyoming'),
'items'=>4,
'matcher'=>"js:function(item) {return ~item.toLowerCase().indexOf(this.query.toLowerCase());}",
)
)
);
$this->widget('bootstrap.widgets.TbTypeahead', array(
'name' => 'your-name-for-the-widget', // NAME
'options'=>array(
'name'=>'demo-typeahead',
'source'=>array(
'Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California',
'Colorado', 'Connecticut', 'Delaware', 'Florida', 'Georgia',
'Hawaii', 'Idaho', 'Illinois', 'Indiana', 'Iowa',
'Kansas', 'Kentucky', 'Louisiana', 'Maine', 'Maryland',
'Massachusetts', 'Michigan', 'Minnesota', 'Mississippi', 'Missouri',
'Montana', 'Nebraska', 'Nevada', 'New Hampshire', 'New Jersey',
'New Mexico', 'New York', 'North Dakota', 'North Carolina', 'Ohio',
'Oklahoma', 'Oregon', 'Pennsylvania', 'Rhode Island', 'South Carolina',
'South Dakota', 'Tennessee', 'Texas', 'Utah', 'Vermont',
'Virginia', 'Washington', 'West Virginia', 'Wisconsin', 'Wyoming'),
'items'=>4,
'matcher'=>"js:function(item) {return ~item.toLowerCase().indexOf(this.query.toLowerCase());}",
)
)
);