var Cookie = Class.create();
Cookie.prototype = {
  initialize: function() {
    //alert('cookie initialized!');
  },
  
  set: function(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+"="+value+expires+"; path=/";
  },

  get: function(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 c.substring(nameEQ.length,c.length);
	}
    return -1;
  },

  del: function(name) {
    this.set(name,"",-1);
  },
  
  // create unique id
  uId: function() {
    var d = new Date();
    return d.getTime();
  }
}