哪里错了呀 就是运行不了.
<%@LANGUAGE= "JAVASCRIPT "   CODEPAGE= "936 "%>  
  <!DOCTYPE   HTML   PUBLIC    "-//W3C//DTD   HTML   4.01   Transitional//EN "    "http://www.w3.org/TR/html4/loose.dtd ">  
  <html>  
  <head>  
  <meta   http-equiv= "Content-Type "   content= "text/html;   charset=gb2312 ">  
  <title>  "window.status和window.defaultstatus " </title> ; 
  <script   language= "javascript ">  
 window.defaultStatus= "000000000 "; 
 function   change() 
 {   
 	window.defaultStatus=window.document.form1.aa.options[window.document.form1.aa.selectedIndex].text 
 } 
  </script>  
  </head>    
  <body>  
  <form   name= "form1 "   method= "post ">  
        <p> 从下拉列表中选中相应的选项,状态栏会有相应的变化 </p>  
        <p>  
              <select   name= "aa "   size= "1 ">    
                    <option   value= "111111111 "> 111111111 </option>  
                    <option   value= "222222222 "> 222222222 </option>  
                    <option   value= "333333333 "> 333333333 </option>  
              </select>  
              <input   type= "submit "   name= "change "   value= "change "   onClick= "change() ">  
        </p>  
  </form>  
  </body>  
  </html>
------解决方案--------------------window.defaultStatus= "000000000 "; 
 这个真的能设置呢 
 为什么哪样子不行呢
------解决方案--------------------可以参考http://blog.csdn.net/rob123/archive/2007/07/02/1675144.aspx
------解决方案--------------------应该用window.status就可以了。把change()函数名改一下
------解决方案-------------------- <input type= "submit " name= "change " value= "change " onClick= "change() ">      
 应是 type= "button "  SUBMIT的话就重新刷新了,永远是0000000