Question

超级链接，鼠标经过则显示背景色的代码

Answer 1

<script language="JavaScript">

function changeto(highlightcolor)

{

source=event.srcElement;

if (source.tagName=="TR"||source.tagName=="TABLE");

return

while(source.tagName!="TD");

source=source.parentElement;

if (source.style.backgroundColor!=highlightcolor&&source.id!="ignore");

<!--设置表格背景颜色-->

source.style.backgroundColor=highlightcolor;

}

function changeback(originalcolor)

{

if (event.fromElement.contains(event.toElement)||source.contains(event.toElement)||source.id=="ignore")

return

if (event.toElement!=source)

source.style.backgroundColor=originalcolor;

}

</script>

<table border="1" width="30%">

<tr onMouseOver="changeto('#FFFF00')" onMouseOut="changeback('white')">

<td width="100%"> <center><a href="http://www.JavaScript.com">JavaScript论坛</a></td></tr>

<!--设置表格第一行的颜色-->

<tr onMouseOver="changeto('#00FF00')" onMouseOut="changeback('white')">

<td width="100%"><center><a href="http://www.JavaScript.com">JavaScript课程</a></td></tr>

<!--设置表格第二行的颜色-->

<tr onMouseOver="changeto('#00FFFF')" onMouseOut="changeback('white')">

<td width="100%"><center><a href="http://www.JavaScript.com">JavaScript软件</a></td></tr>

<!--设置表格第三行的颜色-->

</table>

Answer 2

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