Create Cookie and Delete old cookie using javascript

function SetCookie(id,text)
    {
createCookie("ClientActiveTab","",-1);
createCookie("ClientSelectedTab","",-1);
           var date = new Date();
createCookie("ClientActiveTab",id,1);
createCookie("ClientSelectedTab",text,1);
getSelectedTabFiles(text);
    }
function createCookie(name,value,time)
{
if (time) {
        var date = new Date();
        date.setTime(date.getTime()+(time*24*60*60*1000)); // day 24 hrs
        var expires = "; expires="+date.toGMTString();
    }
    else var expires = "";
    document.cookie = name+"="+value+expires+"; path=/";
}