get and set cookie

setCookie: function ( id, value) {
    document.cookie = id+'='+value+';path=/;expires='+cookieTime(365);
  },
  getCookie: function( id, defaultValue ) {
    var re          = new RegExp(id+'=(.*)');
    var value       = re.exec(document.cookie);
    return (value) ? value[1].split(';')[0] : defaultValue;
  }
 
 
 
 
function cookieTime(days){
 
  var now = new Date();
 
  var exp = new Date();
 
  var x   = Date.parse(now) + days*24*60*60*1000;
 
  exp.setTime(x);
 
  str = exp.toUTCString();
 
  re = '/(\d\d)\s(\w\w\w)\s\d\d(\d\d))/';
 
  return str.replace(re,"$1-$2-$3");
 
}