I have 2 WebDateTimeEdit controls on my control.  When the user sets the first control initially I want to default in the same value into the second datetimeedit control.  I can set the value property of the second control but I can't get it to display the new value on the control.

Here is my clientside script which is fired in the controls ValueChange event.  What am I doing wrong?

 var toDate = document.getElementById(wdtToDate.ClientID);
 var fromDateEdit = document.getElementById(wdtFromDate.ClientID);
    if (toDate.value == '')
    {
        toDate.value = fromDateEdit.value;
        toDate.innerText = fromDateEdit.value;
    }

The value is getting set but nothing is displaying in the ToDate WebDateTimeEdit control.  So I tried setting innerText also, it didn't work.