<script language="JavaScript">
function checkform()
{
var a = document.getElementsByName("sex");
for (var i=0; i<a.length; i++)
if(a[i].chcecked) return true;
return false;
}
</script><form onsubmit="return checkform()">
function checkform()
{
var a = document.getElementsByName("sex");
for (var i=0; i<a.length; i++)
if(a[i].chcecked) return true;
return false;
}
</script><form onsubmit="return checkform()">
if(object){
if(object.length){
flag=true;
for(i=0;i<object.length;i++){
if(object[i].checked)
flag=false;
}
}
else{
if(object.checked)
flag=false;
}
if(flag){
alert(title+"至少有一个被选中!")
return false;
}
return true;
}
}
function checkform(){
if(document.userenter.sex.value==null)
{
alert("请您选择您的性别!");
document.userenter.sex.focus();
return false;
}
else
document.userenter.submit(); //提交表单数据
}
</script>