for eric

jquery-ui-multiselect-widget-filter.js

function filter( e ){
  var term = $.trim( this.value.toLowerCase() );
  
  if( !term ){
    rows.show();
  } else {
    rows.hide();
    
    self._trigger( "filter", e, $.map( cache, function(v,i){
      if ( v.indexOf(term) !== -1 ) {
        rows.eq(i).show();
        return inputs.get(i);
      }
      return null;
    });
  }
};