function getid(o){ return (typeof o == "object")?o:document.getElementById(o);}
function getNames(obj,name,tij){
  var plist = getid(obj).getElementsByTagName(tij);
  var rlist = new Array();
  for(i=0;i<plist.length; ++i){if(plist[i].getAttribute("name") == name){rlist[rlist.length] = plist[i];}}
  return rlist;
}
function fiterplay(obj,num,t,name,c1,c2){
  var fitlist = getNames(obj,name,t);
  for(i=0;i<fitlist.length;++i){
    if(i == num){
      fitlist[i].className = c1;
    }else	{
      fitlist[i].className = c2;
    }
  }
}
function play(obj,num){
  var b = getid('bimg');
  try	{
    with(b)	{
      filters[0].Apply();	fiterplay(b,num,"div","f","dis","undis");	filters[0].play();
    }
  }catch(e)	{
      fiterplay(b,num,"div","f","dis","undis");
  }
}
var autoStart = 0; var n = 0;		
var s = getid("bimg"); var x = getNames(s,"f","div");
function clearAuto() {clearInterval(autoStart);}
function setAuto(){ autoStart=setInterval("auto(n)", 5000)}
function auto(){
  n++ ;
  if(n>(x.length-1)){ n = 0; clearAuto(); setAuto(); }
  play(x[n],n);
}
setAuto();



$(document).ready(function(){
  $("#submit").click(function(){
    if($("#username").val() == ''){
        alert("用户名不能为空！");
        $("#username").focus();
        return false;
    }else if($("#password").val() == ''){
        alert("密码不能为空！");
        $("#password").focus();
        return false;
    }else if($("#validate").val() == ''){
        alert("验证码不能为空！");
        $("#validate").focus();
        return false;
    }
  });
  $.ajax({
       type: "GET",
       url: "/member/ajaxindexstate.php",
       data: "",
       success: function(data){
         if(data != 'error'){
            $("#indexstate").html(data);
         }
       }
   }); 
});