document.write('<select name="in_date" class="input">');
document.write('<option value="2010-03-08" >2010-03-08</option>'); 
document.write('<option value="2010-03-09" >2010-03-09</option>'); 
document.write('<option value="2010-03-10" selected>2010-03-10</option>'); 
document.write('<option value="2010-03-11" >2010-03-11</option>'); 
document.write('<option value="2010-03-12" >2010-03-12</option>'); 
document.write('</select>');