function changepage(e){
n = e.selectedIndex;
location.href = e.options[n].value;
}

document.write('<select name="year" onchange="changepage(this)">');
document.write('<option value="">年度別受賞作品</option>');
document.write('<option value="/recruit/competition/index.html">2009年度</option>');
document.write('<option value="/recruit/competition/2008/index.html">2008年度</option>');
document.write('<option value="/recruit/competition/2007/index.html">2007年度</option>');
document.write('<option value="/recruit/competition/2006/index.html">2006年度</option>');
document.write('</select>');