📄 01.html

📁 javescript网页特效80个例子

💻 HTML

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<html>
<head>
<title>全选按钮</title>
<SCRIPT LANGUAGE="JavaScript">
var checkflag = "false";
function check(field) {
if (checkflag == "false") {
for (i = 0; i < field.length; i++) {
field[i].checked = true;}
checkflag = "true";
return "取消全部"; }
else {
for (i = 0; i < field.length; i++) {
field[i].checked = false; }
checkflag = "false";
return "全部选取"; }
}
</script>
</head>
<body>
<center>
<form name=myform action="" method=post>
<table>
<tr><td>
<b>请选取您最喜欢的脚本语言<br>
<input type=checkbox name=list value="1">Java<br>
<input type=checkbox name=list value="2">JavaScript<br>
<input type=checkbox name=list value="3">ASP<br>
<input type=checkbox name=list value="4">HTML<br>
<input type=checkbox name=list value="5">SQL<br>
<br> 
<input type=button value="全部选取" onClick="this.value=check(this.form.list)"> 
</td></tr>
</table>
</form>
</center>
</body>
</html>

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