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请教为什么下面这段代码放在网页中会报错。.
<script language="javascript">
todayDate=new Date();
today=todayDate.getDate();
month=todayDate.getMonth()+1;
for(i=1;i<=12;i++){
document.write("<option value="+i);
if(month==i){
document.write(" selected");
}
document.write(">"+i+"</option>")
}
</script>
说是对象不支持此属性或方法
单独调试这段代码在ie6下没有问题
<select>
<script language="javascript">
todayDate=new Date();
today=todayDate.getDate();alert(today);
month=todayDate.getMonth()+1;alert(todayDate.getMonth());
for(i=1;i<=12;i++){
document.write("<option value="+i);
if(month==i){
document.write(" selected");
}
document.write(">"+i+"</option>")
}
</script>
</select>
<script language="javascript">
todayDate=new Date();
today=todayDate.getDate();
month=todayDate.getMonth()+1;
document.write("<select size=1 name=D2>");
for(i=1;i<=12;i++)
{
document.write("<option value="+i);
if(month==i)
{
document.write(" selected");
}
document.write(">"+i+"</option>")
}
document.write("</select>");
</script>
这不就可以了，你哪个错误可能是别的地方引起的
你这中写法没有错误，不知道错误哪里，能把代码贴上去吗？
如果你是放到函数(Function mmm())中，用鼠标点击事件调用函数执行这段代码，可能会有问题的，因为它会将<body>...</body>之间的东西覆盖的。而你这种写法它是在<body>...</body>写入之前执行的。
你试试下面的代码中的写法：
<html>
<head>
<title>List</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script LANGUAGE="javascript">
<!--
var onecount;
onecount=0;
subcat = new Array();
subcat[0] = new Array("徐汇区","01","001");
subcat[1] = new Array("嘉定区","01","002");
subcat[2] = new Array("黄浦区","01","003");
subcat[3] = new Array("南昌市","02","004");
subcat[4] = new Array("九江市","02","005");
subcat[5] = new Array("上饶市","02","006");
onecount=6;
function changelocation(locationid)
{
document.myform.smalllocation.length = 0;
var locationid=locationid;
var i;
document.myform.smalllocation.options[0] = new Option(====所有地区====,);
for (i=0;i < onecount; i++)
{
if (subcat[i][1] == locationid)
{
document.myform.smalllocation.options[document.myform.smalllocation.length] = new Option(subcat[i][0], subcat[i][2]);
}
}
}
//-->
</script>
</head>
<body>
<form name="myform" method="post">
<select name="biglocation" onChange="changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value)">
<option value="01" selected>上海</option>
<option value="02">江西</option>
</select>
<select name="smalllocation">
<option selected value="">==所有地区==</option>
</select>
</form>
<script LANGUAGE="javascript">
<!--
changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value);
//-->
</script>
</body>
</html>
