防止表單重複提交

function(event,options){
                $("#submit_login").attr({"disabled":"disabled"});
                var needtime = 3;
                var interval = setInterval(function(){
                    needtime--;
                    if(needtime <= 0) {
                        $("#submit_login"
 
).removeAttr("disabled");
                        clearInterval(interval);
                        return 0;
                    };
                }, 1000);
                 event.preventDefault();
            },