function myopenwindow1()
{
if (document.form5.menu1.options[document.form5.menu1.selectedIndex].value!="")
{
  window.open(document.form5.menu1.options[document.form5.menu1.selectedIndex].value);
 }
}
document.write("<form method=post name=form5 id=form5><select name=menu1 size=1 id=menu1 onChange=javascript:myopenwindow1()><option>++++ 友情链接 ++++</option><option value=http://www.juzhen.net>矩阵科技</option><option value=http://www.chinafxkj.com/>福星科技</option><option value=http://www.whfxhy.com/>福星惠誉</option></select></form>")