分类 javascript 下的文章

js操作cookie

穿转载自http://www.w3cschool.cc/js/js-cookies.html
//设置cookie,参数依次为,cookie键值,cookie值,cookie时间(代表天数)

        function setCookie(cname,cvalue,exdays){
            var d = new Date();
            d.setTime(d.getTime()+(exdays*24*60*60*1000));
            var expires = "expires="+d.toGMTString();
            document.cookie = cname + "=" + cvalue + "; " + expires;
        }
        //获取cookie
        function getCookie(cname){
            var name = cname + "=";
            var ca = document.cookie.split(';');
            for(var i=0; i<ca.length; i++)
              {
              var c = ca[i].trim();
                if (c.indexOf(name)==0) 
                    return c.substring(name.length,c.length);
              }
            return "zj";
        }
        //删除cookie
        function delCookie (cookie_name) {
            document.cookie = cookie_name+"=; expires=Thu, 01 Jan 1970 00:00:00 GMT";
        }

不知道为什么,今天在本地测,删除cookie是成功的,昨天在服务器上面,删除cookie死活不行,服务器系统也是windows啊。。。。。
昨天不成功解决办法

var date=new Date();
date.setTime(date.getTime()-10000);
document.cookie=cookie_name+"=zj; expire="+date.toGMTString()+"; path=/";

js检测客户端类型并跳转

var bForcepc = fGetQuery("dv") =="pc";
    function fBrowserRedirect(){
        var sUserAgent = navigator.userAgent.toLowerCase();
        var bIsIpad = sUserAgent.match(/ipad/i) =="ipad";
        var bIsIphoneOs = sUserAgent.match(/iphone os/i) =="iphone os";
        var bIsMidp = sUserAgent.match(/midp/i) =="midp";
        var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) =="rv:1.2.3.4";
        var bIsUc = sUserAgent.match(/ucweb/i) =="ucweb";
        var bIsAndroid = sUserAgent.match(/android/i) =="android";
        var bIsCE = sUserAgent.match(/windows ce/i) =="windows ce";
        var bIsWM = sUserAgent.match(/windows mobile/i) =="windows mobile";
        if(bIsIpad){
            var sUrl = location.href;
            if(!bForcepc){
                return true;
            }
        }
        if(bIsIphoneOs || bIsAndroid){
            var sUrl = location.href;
            if(!bForcepc){
                return true;
            }
        }
        if(bIsMidp||bIsUc7||bIsUc||bIsCE||bIsWM){
            var sUrl = location.href;
            if(!bForcepc){
                return true;
            }
        }
        return false;
    }
    function fGetQuery(name){//获取参数值
        var sUrl = window.location.search.substr(1);
        var r = sUrl.match(new RegExp("(^|&)"+ name +"=([^&]*)(&|$)"));
        return(r ==null?null: unescape(r[2]));
    }
    function fShowVerBlock(){
        if(bForcepc){
            document.getElementById("dv_block").style.display ="block";
        }
         else{
            document.getElementById("ad_block").style.display ="block";
        }
    }
    if(fBrowserRedirect()){
        if (window.location.host=='www.xxx.com') {
            window.location.href='http://m.xxx.com'+window.location.href.substr(window.location.href.indexOf(window.location.host)+window.location.host.length,window.location.href.length);
        };
    }else{
        if (window.location.host=='m.xxx.com') {
            window.location.href='http://www.xxx.com'+window.location.href.substr(window.location.href.indexOf(window.location.host)+window.location.host.length,window.location.href.length);
        };
}