js控制网页自动刷新 刷新一次停止刷新

<script type="text/javascript">
    if(document.cookie.indexof("scscms")!=-1){
        settimeout(function(){
            window.location.reload();
        },5000);
        document.cookie="scscms=yes";
    }
</script>

$(function(){
    if($.cookie("refresh")!="no"){
        settimeout(function(){
            window.location.reload();
            $.cookie("refresh","no");
        },5000);
    }
});