var datePicker = new Ext.DatePicker({
    id: 'datePicker',
    format: 'Y-m-d H:i:s',
    width: 175,
    showToday: true,

    style:{
        border: 'none'
    }
	
});

datePicker.addListener('select', datePickerClick);

function datePickerClick(el, dateSelected) {

    store.load({
        params:{
            start: 0,
            limit: showResults,
            month: dateSelected.format('m'),
            day: dateSelected.format('d'),
            year: dateSelected.format('Y')
        }
    });
}