验证表单中radio是否选中
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2:
<script language="JavaScript">
<!--
function Check()
{
var canswer=document.form.canswer;
var i=0
for(0;i<canswer.length;i++)
{
if(canswer[i].checked)
{
break;
}
if(i==3)
{
window.alert("还没有选中答案");
return false;
}
}
//-->
</script>
<form method="POST" action="" onSubmit="return Check()" name="form">
1: <input name="canswer" type="radio" value="1">
2: <input name="canswer" type="radio" value="2">
3: <input name="canswer" type="radio" value="3">
4: <input name="canswer" type="radio" value="4">
<input type="submit" value="提交">
</form>
posted on 2009-09-21 09:36 Master zhu 阅读(658) 评论(1) 编辑 收藏 举报