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点击checkbox实现全选效果</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> ???请选择爱好： ???<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()" />全选/取消</body></html>js 实现复选框全选 全部选
原文地址：http://www.cnblogs.com/miye/p/7767250.html