onmouseover怎么只执行一次？？

yongsky 2009-06-24 06:22:00

新手，谢谢！



...

<script type="text/javascript">

function ChangeBox(tag,ftag,ntag,xtag,num)

{

 var element = document.getElementById(tag);

 var box = document.getElementById(ftag);

 var nbox = document.getElementById(ntag);

 var xbox = document.getElementById(xtag);

 var str = "MenuPublic Menu_a"; 

 if ( num == 1 )

  { 

   element.className = str;

   box.className = "MenuPublic Menu_b";

   nbox.style.display = "block";

   xbox.style.display = "none";

   }

 if ( num == 0 )

  {

   element.className = str;

   box.className = "MenuPublic Menu_b";

   nbox.style.display = "block";

   xbox.style.display = "none";

   }

}

</script>

... //现在问题是当鼠标移到Menu Two上时可显示bb，再把移到Menu One 时就没反应了，按理说可以显示aa的。请教问题出在那？？谢谢！！

<div id="menu1" class="MenuPublic Menu_a" onmouseover="javascript:ChangeBox('menu1','menu2';'messbox1','messbox2','1');" >Menu One</div>

<div id="menu2" class="MenuPublic Menu_b" onmouseover="javascript:ChangeBox('menu2','menu1','messbox2','messbox1','0');" >Menu Two</div>

<div id="messbox1" class="MessPublic MessBox1">aa</div>

<div id="messbox2" class="MessPublic MessBox2">bb</div>

...

...全文

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yongsky 2009-06-24

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natineprince 2009-06-24

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...
<script type="text/javascript">
function ChangeBox(tag,ftag,ntag,xtag,num)
{
var element = document.getElementById(tag);
var box = document.getElementById(ftag);
var nbox = document.getElementById(ntag);
var xbox = document.getElementById(xtag);
var str = "MenuPublic Menu_a";
if ( num == 1 )
{
element.className = str;
box.className = "MenuPublic Menu_b";
nbox.style.display = "block";
xbox.style.display = "none";
}
if ( num == 0 )
{
element.className = str;
box.className = "MenuPublic Menu_b";
nbox.style.display = "block";
xbox.style.display = "none";
}
}
</script>
... //现在问题是当鼠标移到Menu Two上时可显示bb，再把移到Menu One 时就没反应了，按理说可以显示aa的。请教问题出在那？？谢谢！！
<div id="menu1" class="MenuPublic Menu_a" onmouseover="javascript:ChangeBox('menu1','menu2','messbox1','messbox2','1');" >Menu One</div>
<div id="menu2" class="MenuPublic Menu_b" onmouseover="javascript:ChangeBox('menu2','menu1','messbox2','messbox1','0');" >Menu Two</div>
<div id="messbox1" class="MessPublic MessBox1">aa</div>
<div id="messbox2" class="MessPublic MessBox2">bb</div>
...

看红色的地方