记入cookie一个ip一天只弹一次的弹窗代码JavaScript实例教程

<Script Language="JavaScript">
function setCookie(name, value, expire)
{  
window.document.cookie = name + "=" + escape(value) + ((expire == null) ? "" : ("; expires=" + expire.toGMTString()));
}

function getCookie(Name)
{  
   var search = Name + "=";
   if (window.document.cookie.length > 0)
{ // if there are any cookies
     offset = window.document.cookie.indexOf(search);
  if (offset != -1)
{ // if cookie exists
       offset += search.length;        
// set index of beginning of value
    end = window.document.cookie.indexOf(";", offset)         
// set index of end of cookie value
    if (end == -1)
      end = window.document.cookie.length;
    return unescape(window.document.cookie.substring(offset, end));
     }
   }
   return null;
}

function register(name) {
  var today = new Date();
  var expires = new Date();
  expires.setTime(today.getTime() + 1000*60*60*24);
  setCookie("ttt", name, expires);
}

  var exitURL="http://www.web.com/";//这个地方放置你的HTML代码

function openWin() {

  var c = getCookie("ttt");
  if (c != null) {
    return;
  }
  register("ttt");
 
  var featureStr="''";
 
    featureStr="'top=0,left=0,width=88,height=31,toolbar=yes, menubar=no, scrollbars=no, resizable=no, location=no, status=no,center:no'";//这里是设置你上面的HTML弹出的高度和宽度的

  
  self.focus();
 
  var ExitWindow = window.open(exitURL,'', featureStr);
 
    ExitWindow.focus();
 
}

openWin();
window.focus()
</script>