Snippet of html code

```
<li>
    <select name="months" class="sel">
        <option selected="" value="Default"> Month </option>
        <option value="Jan">January</option>
        <option value="Feb">February</option>
        <option value="Mar">March</option>
        <option value="Apr">April</option>
        <option value="May">May</option>
        <option value="Jun">June</option>
        <option value="Jul">July</option>
        <option value="Aug">August</option>
        <option value="Sep">September</option>
        <option value="Oct">October</option>
        <option value="Nov">November</option>
        <option value="Dec">December</option>
    </select>
</li>
<li><label class="label">From:</label></li>
<li><input name="fdate" type="text" class="sel" size="10"  id="SelectedDate"  
   readonly onClick="GetDate(this);"><li>

```

The problem here is the selected month from dropdown list should be shown in datepicker....

how to integrate this selected option to my datepicker code.......