Select DropDown and DateMenu


I would like to select the following DropDown menu and select a specific option. After that it should select a certain date.
Is that possible?

In the browser it looks like this:

In the source Code:

<div class="_filterArea" style="overflow: hidden;">
	<div style="float: left; margin-right: 20px;">        
		Bezirks-/Ortsstelle:<br /><select id="departmentSelector" name="departmentSelector"><option value="-1">-- Bezirks-/Ortsstelle w&#228;hlen --</option>
<option value="31">First</option>
<option value="1">Second</option>
<option value="208">Third</option>
<option value="56">I want this one</option>

Can anyone help me?