One Javascript Demo

<div id="a1" style=" position:absolute; z-index:2;"></div>
      <table width="200" border="0" cellpadding="0" cellspacing="0">
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     <td><img src="白羊.jpg" alt="hi.baidu.com/liwya" onmousemove="show(event,'白羊.jpg','白羊座~')"   onmouseout="hide(this)" /></td>
     <td></td>
     <td></td>
     <td></td>
     <td><img src="金牛.jpg" alt="hi.baidu.com/liwya" onmousemove="show(event,'金牛.jpg','金牛座~')"   onmouseout="hide(this)" /></td>
     <td></td>
     <td></td>
     <td></td>
     <td><img src="双子.jpg" alt="hi.baidu.com/liwya" onmousemove="show(event,'双子.jpg','金牛座~')"   onmouseout="hide(this)" /></td>
    </tr>
    <tr></tr>
    <tr>
     <td><img src="巨蟹.jpg" alt="hi.baidu.com/liwya" onmousemove="show(event,'巨蟹.jpg','巨蟹座~')"   onmouseout="hide(this)" /></td>
     <td></td>
     <td></td>
     <td></td>
     <td><img src="狮子.jpg" alt="hi.baidu.com/liwya" onmousemove="show(event,'狮子.jpg','狮子座~')"   onmouseout="hide(this)" /></td>
     <td></td>
     <td></td>
     <td></td>
     <td><img src="处女.jpg" alt="hi.baidu.com/liwya" onmousemove="show(event,'处女.jpg','处女座~')"   onmouseout="hide(this)" /></td>
 &nb