一段简单js代码的问题
- HTML code
<html><head><!--省略了topic和htopic的定义--></head><body><div id="main"> <div class="topic"> </div> <div class="htopic"> <div class="topic"> </div> <div class="htopic"> </div> </div></div></body></html>
- JScript code
function mgoto(index) { var usrcon = document.getElementById("main").childNodes[1]; for (var i = 0; i < usrcon.childNodes.length; ++i) if (i == index) usrcon.childNodes[i].className = topic; else usrcon.childNodes[i].className = htopic; }我刚开始接触js，搞不懂为什么这段js代码会报错？求各位解释一下
[解决办法]
我晕死，你那哪叫定义呀？？你那只是css样式定义而已，改成下面的才对
- JScript code
usrcon.childNodes[i].className = 'topic'; elseusrcon.childNodes[i].className = 'htopic';