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js 實現復選框全選 全部選

tails elements 全選 str byname false public xhtml under

http://blog.csdn.net/sunwei3160/article/details/38515187

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>js點擊checkbox實現全選效果</title>
<script type="text/javascript">
    function
DoCheck() { var ch = document.getElementsByName("choose"); if (document.getElementsByName("allChecked")[0].checked == true) { for (var i = 0; i < ch.length; i++) { ch[i].checked = true; } } else { for (var i = 0; i < ch.length; i++) { ch[i].checked
= false; } } } </script> </head> <body> 請選擇愛好: <br /> <input type="checkbox" name="choose">跳舞 <input type="checkbox" name="choose">跳水 <input type="checkbox" name="choose" />跳棋 <input type="checkbox" name="choose" />跑步 <br /> <input type="checkbox" name="allChecked" id="allChecked" onclick
="DoCheck()" />全選/取消 </body> </html>

js 實現復選框全選 全部選