日期:2014-05-16 浏览次数:20354 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; }