function trim(str){
	if(str){
		return str.replace(/^\s+|\s+$/g,"");
	}
}
var JGCookie = {
  date: new Date(),
  set: function(name, content, days) {
    var expires = "";
    if(days) {
	  //days = 1;
	  this.date = new Date();
	  this.date.setTime(this.date.getTime()+(days*24*60*60*1000));
      expires = "expires=" + this.date.toGMTString() + "; ";
	}
	ccc = name + "=" + content + "; " + expires + "path=/";
	document.cookie = ccc;
	return true;
  },
  get: function( name ) {
  	var nameE = name + "=";
	var cookies = document.cookie.split(";");
	for(var i = 0, Cookie; Cookie = cookies[i]; i++) {
	  while(Cookie.charAt(0) == " ") {
	  	Cookie = Cookie.substring(1,Cookie.length);
	  }
	  if(Cookie.indexOf(nameE) == 0) {
	  	return Cookie.substring(nameE.length,Cookie.length);
	  }
	}
	return false;
  },
  unset: function( name ) {
  	this.set(name,'',false);
	return true;
  }
}