function getStatusStr()
{
var formName = document.main_form;
var selected = false ;
if (formName.vote_id.checked)selected = true ; if(!selected)
{
alert("请选择栏目!");
return false;
}
return true ;
}
{
var formName = document.main_form;
var selected = false ;
if (formName.vote_id.checked)selected = true ; if(!selected)
{
alert("请选择栏目!");
return false;
}
return true ;
}
selected = true ;
<INPUT name="vote_id" type="radio"><INPUT onclick="getStatusStr()" type="button" value="OK">
</form>
<script>
function getStatusStr()
{
var formName = document.main_form;
selected = false ;
var i ;
if(formName.vote_id.length==null&&formName.vote_id.checked)
selected = true ;
for( i = 0; i< formName.vote_id.length; i ++ )
{
if (formName.vote_id[i].checked)
{
selected = true ;
break ;
}
}
if(!selected)
{
alert("请选择栏目!");
return false;
}
return true ;
}
</script>
</body>