// Sets cookie values. Expiration date is optional

function setCookie(name, value, expire) {   
  document.cookie = name + "=" + escape(value)   
  + ((expire == null) ? "" : ("; expires=" + expire.toGMTString()));
}

function getCookie(Name) {   
  var search = Name + "=";   
  if (document.cookie.length > 0) { 
    // if there are any cookies      
	offset = document.cookie.indexOf(search);       
	if (offset != -1) { 
	  // if cookie exists          
	  offset += search.length;          
	  // set index of beginning of value         
	  end = document.cookie.indexOf(";", offset);          
	  // set index of end of cookie value         
	  if (end == -1) end = document.cookie.length;         
	  return unescape(document.cookie.substring(offset, end));
	}
  }
}