function newCookie(name,value) {var days = 90; 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+"="+value+expires+"; path=/";}
function readCookie(name) {var nameSG = name + "=";var nuller = '';if (document.cookie.indexOf(nameSG) == -1)return nuller;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(nameSG) == 0) return c.substring(nameSG.length,c.length);}return null;}
function eraseCookie(name) {newCookie(name,"",1);}