鼠标放上去超链接的文字逐个加色效果

<public:component>
<public:attach event="onmouseover" onevent="domouseover()">
<public:attach event="onmouseout" onevent="domouseout()">
<script language="javascript">
function domouseover(){
with(element)
{filters.item(0).apply();filters.item(0).play();}}
function domouseout(){
with(element){
filters.item(0).apply();
filters.item(0).play();}}
</script>
</public:component>

a {
    filter: progid:dximagetransform.microsoft.gradientwipe(duration=1); behavior: url(jcss/link.htc); height: 1px; text-decoration: none
}