[s2] How to get the value of dojo datetimepicker object

[Vincent Lin]

I am trying to get the value inputed by the user from datetimepicker object.
I have the following javascript in my JSP:

       var obj = dojo.widget.byId("createTimeTm");
       alert(obj);
       alert(obj.getValue());

But "alert(obj.getValue())" encounter a javsacript error.

Can anyone tell me the correct syntax of the javascript to retrieve the
value of datetimepicker object?

Thanks!