复制代码代码如下:
<Html>
<head>
<title> 制作全选效果 </iteme>
<bahasa skrip = "javascript">
function selectAll () {
allcheckboxs = document.getElementsbyname ("a");
var a2 = document.geteLementsbyname ("a1");
if (a2 [0] .Checked) {
untuk (var i = 0; i <allcheckboxs.length; i ++) {
Allcheckboxs [i] .Checked = true;
}
}kalau tidak{
untuk (var i = 0; i <allcheckboxs.length; i ++) {
allcheckboxs [i] .mokrah = false;
}
}
}
</script>
</head>
<body>
<Form name = "myForm">
<able>
<tr> <td colspan = "2"> <img src = "gambar/head.jpg"/> </td> </tr>
<tr>
<td> <input type = "centang kotak" name = "a1" onclick = "selectAll ()"/> 全选/全不选 </td>
<td> <img src = "gambar/top.jpg"/> </td>
</tr>
<tr> <td> <input type = "centang kotak" name = "a"/> </td> <td> <img src = "gambar/satu.jpg"/> </td> </tr>
<tr> <td> <input type = "centang kotak" name = "a"/> </td> <td> <img src = "gambar/dua.jpg"/> </td> </tr>
<tr> <td> <input type = "centang kotak" name = "a"/> </td> <td> <img src = "gambar/tiga.jpg"/> </td> </tr>
<tr> <td> <input type = "centang kotak" name = "a"/> </td> <td> <img src = "gambar/empat.jpg"/> </td> </tr>
</boable>
</form>
</body>
</html>