function getCookie(name) {
  var nameOfCookie=name+"=";
  var a=0;

  while(a<=document.cookie.length) {
		var b=(a+nameOfCookie.length);

		if(document.cookie.substring(a,b)==nameOfCookie) {
      if((endOfCookie=document.cookie.indexOf(";",b))==-1)
				endOfCookie=document.cookie.length;

			return unescape(document.cookie.substring(b,endOfCookie));
    }

    a=document.cookie.indexOf(" ",a) +1;

		if(a==0)
			break;
	}

	return "";
}

function setCookie(name, value, expiredays) {
  var todayDate = new Date();
  todayDate.setDate( todayDate.getDate() + expiredays );
  document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";"
}