How to get value of datetimepicker in javascript?

[abi chitnis]

I am using datetimepicker widget in my struts2 applicaion. How do I get the value of date enterd in the javascript. I tried following but it gives me value undefined when I do document.getElementById('documentDate').value.

    

<sx:datetimepicker 
        		adjustWeeks="true"
        		displayFormat="MM/dd/yy"
        		toggleType="explode"
        		formatLength="long"
        		key="label"
        		name="selectedValuesMap[%{mapKey}]"
        		language="%{getText('picker_language')}"
        		id="documentDate"
/>

alert('Key Value = ' + document.getElementById('documentDate').value);

Thank you,

Abhi

[David Newton]

I'd assume you'd have to use the Dojo JavaScript functions to access Dojo components--I'd try checking the Dojo 0.4 documentation (which still exists, but is a bit tricky to find sometimes).

Here's some starting points:

http://dojotoolkit.org/book/dojo-book-0-4
http://download.dojotoolkit.org/release-0.4.3/