YAHOO.namespace ("Fiveself.Rest.Content");
YAHOO.namespace ("Fiveself.Rest.Content.ExternalFile"); 

YAHOO.Fiveself.Rest.Content.ExternalFile.Get = function(callback, external_file_id) {
	
	var url = '../rest/external-file/adhoc/get.json?external_file_id=' + external_file_id + "&csn=" + YAHOO.Fiveself.Rest.Constant.clientShortName;
	YAHOO.util.Connect.asyncRequest('GET', url, callback , null);

};