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<!-- 把如下代码加入<body>区域中 --> <SCRIPT LANGUAGE="JavaScript"> <!-- Begin function anyCheck(form) { var total = 0; var max = form.ckbox.length; for (var idx = 0; idx < max; idx++) { if (eval("document.playlist.ckbox[" + idx + "].checked") == true) { total += 1; } } alert("你选择了 " + total + " 个选项."); } // End --> </script> <form method="post" name=playlist> 1<input type=checkbox name=ckbox> 2<input type=checkbox name=ckbox> 3<input type=checkbox name=ckbox> 4<input type=checkbox name=ckbox> 5<input type=checkbox name=ckbox> 6<input type=checkbox name=ckbox> 7<input type=checkbox name=ckbox> 8<input type=checkbox name=ckbox> 9<input type=checkbox name=ckbox> <p><center><input type=button value="检测选择个数" onClick="anyCheck(this.form)"> </center></form>
