帮忙看看 onMouseOver 怎么加?
<html>  
  <head>  
  <title> 校内新闻 </title>  
  </head>  
  <body>    
  <table   border=0   width=190>  
  <tr>  <td   colspan=2   height=10>  </tr>  
  <tr>  
        <td   width=8   align=center>  </td>  
        <td   width=182   align=left> 校内新闻1 </td>  
  </tr>  
  <tr>  
        <td   width=8   align=center> >  </td>  
        <td   width=182   align=left> 校内新闻2 </td>  
  </tr>  
  <tr>  
        <td   width=8   align=center>  </td>  
        <td   width=182   align=left> 校内新闻3 </td>  
  </tr>  
  <tr>  <td   colspan=2   height=10>  </tr>  
  </table>    
  </body>  
  </html>  
 ======================== 
 当前结果是:   
          校内新闻1 
    >    校内新闻2 
          校内新闻3   
 ==========   我想动态的实现鼠标移到新闻1上时> 出现2和3上的> 消失,移到2上时> 出现1和3上> 消失,移到3上时> 出现1和2消失============   
 我该怎么写?
------解决方案-------------------- <html>  
  <head>  
  <title> 校内新闻 </title>  
  </head>  
  <body onLoad= "init(); ">  
  <script>  
 	function init(){ 
 		var table = document.getElementById( "table1 "); 
 		var spans = table.getElementsByTagName( "span "); 
 		for(var i = 0 ; i  < spans.length ;i++){ 
 			spans[i].onmouseover = function(){ 
 				this.innerHTML =  "> " + this.innerHTML; 
 			} 
 			spans[i].onmouseout = function(){ 
 				if(this.innerHTML.indexOf( "> ") != -1) this.innerHTML = this.innerHTML.substring(1); 
 			} 
 		} 
 	} 
  </script>  
  <table border=0 width=190 id= "table1 ">  
  <tr>  <td colspan=2 height=10>  </tr>  
  <tr>  
    <td width=8 align=right>  </td>  
    <td width=182 align=right>  <span id= "test "> 校内新闻1 </span>  </td>  
  </tr>  
  <tr>  
    <td width=8 align=right>  </td>  
    <td width=182 align=right>  <span id= "test "> 校内新闻2 </span>  </td>  
  </tr>  
  <tr>  
    <td width=8 align=right>  </td>  
    <td width=182 align=right>  <span id= "test "> 校内新闻3 </span>  </td>  
  </tr>  
  <tr>  <td colspan=2 height=10>  </tr>  
  </table>    
  </body>  
  </html>
------解决方案--------------------onmouseover,onmouseout都要写 
 类似以下: 
  <script>  
 function show1(i,v) 
 {   
 	document.getElementById(i).innerHTML =  '>  '+v; 
 } 
 function show2(i,v) 
 { 
 	var x = v; 
 	document.getElementById(i).innerHTML = x.replace(/^>(.*)/, '$1 '); 
 } 
  </script>  
  <table border=0 width=190>  
  <tr>  <td colspan=2 height=10>  </tr>  
  <tr>  
  <td width=182 align=left id= "new1 " onmouseover= "show1(this.id,this.innerHTML) " onmouseout= "show2(this.id,this.innerHTML) "> 校内新闻1 </td>  
  </tr>  
  <tr>    
  <td width=182 align=left id= "new2 " onmouseover= "show1(this.id,this.in