<s:doubleselect label="doubleselect test1" name="menu" list="{'fruit','other'}" doubleName="dishes" doubleList="top == 'fruit' ? {'apple', 'orange'} : {'monkey', 'chicken'}" />
doubleList="top == 'fruit' ? {'apple', 'orange'} : {'monkey', 'chicken'}" />
part for that example..doubleList="top == 'fruit' ? {'apple', 'orange'} : {'monkey', 'chicken'}" />