Cookie

//设置Cookie
function setCookie(name,value,iDay){
    var oDate=new Date();
    oDate.setDate(oDate.getDate()+iDay);
    document.cookie=name+'='+value+';expires='+oDate;
}
//获取Cookie
function getCookie(name){
    var arr=document.cookie.split('; ');
    for(var i=0;i<arr.length;i++){
        var arr2=arr[i].split('=');
        if(arr2[0]==name){
            return arr2[1];
        }
    }
    return '';        
}
//删除Cookie
function deleteCookie(name){
    setCookie(name,1,-1);
}