<table width="20" border="1">
<tr>
<th scope="row">ewr</th>
<td>wrewrre</td>
</tr>
<tr >
<th scope="row">ewr</th>
<td>rewr
<input type="checkbox" id="checkbox" value="checkbox"></td>
</tr>
<tr>
<th scope="row">ewr</th>
<td>rew</td>
</tr>
</table>
<input type="button" name="Submit" value="变颜色" onClick="f();">
<script language=javascript>
function f(){
var s=document.all.checkbox;
var t=s.parentNode;
while(t.tagName!='TR'){ t=t.parentNode;}
t.style.backgroundColor="blue";
}
</script>
<tr>
<th scope="row">ewr</th>
<td>wrewrre</td>
</tr>
<tr >
<th scope="row">ewr</th>
<td>rewr
<input type="checkbox" id="checkbox" value="checkbox"></td>
</tr>
<tr>
<th scope="row">ewr</th>
<td>rew</td>
</tr>
</table>
<input type="button" name="Submit" value="变颜色" onClick="f();">
<script language=javascript>
function f(){
var s=document.all.checkbox;
var t=s.parentNode;
while(t.tagName!='TR'){ t=t.parentNode;}
t.style.backgroundColor="blue";
}
</script>
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<script language=javascript>function check(obj){ while(obj=obj.parentElement){
if(obj.tagName=="TD"){
obj=obj.parentElement;
break;
}
return;
} if(obj.style.backgroundColor=='')
obj.style.backgroundColor='red';
else
obj.style.backgroundColor='';
}
</script>
</HEAD><BODY>
<table width="200" border="1" cellspacing="0" style="border-collapse:collapse;" bordercolor="#0099cc">
<tr >
<td width="80%">Row1</td>
<td> </td>
<td> </td>
<td> </td>
<td><input type="checkbox" id="checkbox" value="checkbox" onclick="check(this)"></td>
</tr> <tr >
<td width="80%">Row1</td>
<td> </td>
<td> </td>
<td> </td>
<td><input type="checkbox" id="checkbox" value="checkbox" onclick="check(this)"></td>
</tr>
<tr >
<td width="80%">Row1</td>
<td> </td>
<td> </td>
<td> </td>
<td><input type="checkbox" id="checkbox" value="checkbox" onclick="check(this)"></td>
</tr>
<tr >
<td width="80%">Row1</td>
<td> </td>
<td> </td>
<td> </td>
<td><input type="checkbox" id="checkbox" value="checkbox" onclick="check(this)"></td>
</tr>
</table>
</BODY>
</HTML>
----------------------------------你要的是这样的吧,做了一段演示一下