有关checkbox

有一表格table, 第一列为checkbox
现希望,当表格的第5列或第6列为'1'时,checkbox有效,其余无效

解决方案 »

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<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>test</title>
<script defer>
var t = document.getElementById("table1");
for(var i=0;i<t.rows.length;i++){
if(t.rows(i).cells(4).innerText==1||t.rows(i).cells(5).innerText==1){
t.rows(i).cells(0).firstChild.disabled = false;
}else{
t.rows(i).cells(0).firstChild.disabled = true;
}
}
</script>
</head><body><table border="1" width="100%" id="table1">
<tr>
<td><input type="checkbox">　</td>
<td>　</td>
<td>　</td>
<td>　</td>
<td>1</td>
<td>2</td>
</tr>
<tr>
<td><input type="checkbox">　</td>
<td>　</td>
<td>　</td>
<td>　</td>
<td>2</td>
<td>1</td>
</tr>
<tr>
<td><input type="checkbox">　</td>
<td>　</td>
<td>　</td>
<td>　</td>
<td>1</td>
<td>1</td>
</tr>
<tr>
<td><input type="checkbox">　</td>
<td>　</td>
<td>　</td>
<td>　</td>
<td>2</td>
<td>2</td>
</tr>
</table></body></html>
<html><head>
<meta http-equiv="Content-Language" content="zh-cn">
<script type="text/javascript">
function test()
{
var tbl=document.getElementById("tbl");
for(var i=0;i<tbl.rows.length;i++)
{
var v5=tbl.rows[i].cells[4].innerHTML;
var v6=tbl.rows[i].cells[5].innerHTML;
if (v5=='1' || v6=='1')
{
document.getElementById('chk' + i).disabled=false;
}

}

}
</script>
</head><body>
<table border="1" width="300" cellspacing="0" cellpadding="0" id="tbl">
<tr>
<td><input id="chk0" type="checkbox" ></td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td><input id="chk1" type="checkbox" disabled></td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td><input id="chk2" type="checkbox" disabled></td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td><input id="chk3" type="checkbox" disabled></td>
<td> </td>
<td> </td>
<td> </td>
<td>1</td>
<td> </td>
</tr>
<tr>
<td><input id="chk4" type="checkbox" disabled></td>
<td> </td>
<td> </td>
<td> </td>
<td>1</td>
<td> </td>
</tr>
<tr>
<td><input id="chk5" type="checkbox" disabled></td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td>1</td>
</tr>
</table>
<input type="button" value="test" onclick="test();" />
</body>
</html>