enable disable the dojo time tag in struts2 jsp

[vikas byn]

<sx:datetimepicker name="fromTime" disabled="true" type="time" displayFormat="HH:mm:ss">

how can i enable above tag.

[vikas byn]

<sx:datetimepicker name="test" />

I try that..
document.getElementsByName("dojo.test")[0].removeAttribute("disabled");
document.getElementsByName("test")[0].removeAttribute("disabled");


but its not working fine...