急,急,急js 中Element未定义??

Question

<script type="text/javascript">function showMenu(id){
     hideall();
     if(id == null)
      id=0;
 Element.show('div'+id);
 changePic(id,"/title","/title2");
   }
   
   function hideall(){
     Element.hide('div0');
     changePic(0,"/title2","/title");
     Element.hide('div1');
     changePic(1,"/title2","/title");
     Element.hide('div2');
     changePic(2,"/title2","/title");
     Element.hide('div3');
     changePic(3,"/title2","/title");
     Element.hide('div4');
     changePic(4,"/title2","/title");
     Element.hide('div5');
     changePic(5,"/title2","/title");
     Element.hide('div6');
     changePic(6,"/title2","/title");
   }
   
   function changePic(id, old,newstr){
     var origenpic= $('img'+id).src;
 var newPic = origenpic.split(old).join(newstr); 
 $('img'+id).src =newPic;
   }<td width="91" align="left" valign="top"><a href="#"  onMouseOver="showMenu('0');"><img id="img0" src="image/首页.jpg" name="Image118" width="91" height="37" border="0" alt="" /></a></td>
报的错误是 Element未定义??望指教??多谢

Answer 1

没看见你定义过Element这个东东呀？

Answer 2

 Element呢？
代码没贴全错误信息就是 Element没定义

Answer 3

js中不是有Element 这个类吗,不可以直接用吗??