select控件在火狐浏览器无法调用javascript解决

select 在IE和Firefox的区别 用拉框选择某个值弹出二级菜单火狐下正常在IE下面没反应

 

 

 

解决办法： 

<script type="text/javascript">
   function changePage() {
    var currPage_1 = document.getElementsByName("currpage")[0];
    var currPage = currPage_1.options[currPage_1.selectedIndex].value;
    window.self.location = "MessageServlet?method=view&currPage="
      + currPage;
   }
  </script>

 

<select id="currpage"name="currpage" onchange="changePage()">