日期:2014-05-16 浏览次数:20427 次
<%@LANGUAGE="VBSCRIPT" CODEPAGE="936"%>
<!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>无标题文档</title>
</head>
<body>
<form id="form1" name="form1" method="post" action="">
<table width="479" height="53" border="1" cellspacing="0">
<%
for i=1 to 5
%>
<tr>
<td width="488"><%=i%>.<input type="checkbox" name="checkbox" value="checkbox" onclick="f()"/>
全选该类</td> <%' 这里是大类复选框,点击实现该类下所有小类全选。%>
</tr>
<tr>
<td>
<div>
<ul>
<%
for j=1 to 3
%>
<li style="float:left; width:60px"><%=j%>. <input type="checkbox" name="checkbox2" value="checkbox" onclick="f1()"/></li>
<%
'函数f1()怎样实现全部取消该大类下所有小类选择后,大类的勾选才能去掉?
next
%>
</ul>
</div>
</td>
</tr>
<%
next
%>
<tr>
<td width="488" align="right"> <input type="checkbox" name="checkbox" value="checkbox" onclick="f2()"/>
全选 </td><%' 这里是总复选框,点击实现所有小类全选%>
</tr>
</table></form>
</body>
</html>
//调用时需要向f1函数传递this参数:
//<input type="checkbox" name="checkbox2" value="checkbox" onclick="f1(this)"/>
function f1(obj) {
var chks = obj.parentNode.parentNode.getElementsByTagName('input'); //当前大类下所有小类复选框集合
var tr = obj.parentNode.parentNode.parentNode.parentNode.parentNode;
var tmp = tr.previousSibling;
while (tmp.nodeType != 1) {
tmp = tmp.previousSibling;
}
var c = tmp.getElementsByTagName('input')[0]; //大类复选框
var counter = 0;
for (var i = 0; i < chks.length; i ++) {
if (chks[i].checked == false) counter ++;
}
if (counter == chks.length) c.checked = false;
}