function createCookie(name,value,days) {
    if (days) {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = "; expires="+date.toGMTString();
    }
    else var expires = "";
    document.cookie = name+"="+escape(value)+expires+"; path=/";
}
 
function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return unescape(c.substring(nameEQ.length,c.length));
    }
    return null;
}
 
function eraseCookie(name) {
    createCookie(name,"",-1);
}
 
function showCookie(name) {
    alert(readCookie(name));
}
 
 
function addCookie(name,value,days) {
    if (readCookie(name) != null) {
        var oldvalue = readCookie(name);
        var newvalue = oldvalue+","+value;
    }
    else var newvalue = value;
    createCookie(name,newvalue,days);
}
 
function getHistory(name) {
    var sHistory = readCookie(name);
    if(sHistory) {
        var aHistroy = sHistory.split(",");
        for (x in aHistroy)
        {
            //do something ...
        }
    }
}



function islogin()
{
    return readCookie("m_email")!=null;
}

function read_loginUser(){
return readCookie("m_email");
}