var xml_v2 = function( url, methods, params, callback_fun){
	new Ajax.Request( url,{ method: methods, parameters: params, onComplete: callback_fun});
}
var xml_v2_Updater = function( obj, url, methods, params){
	$(obj).innerHTML = '<img src="/common/images/loading.gif">';
	new Ajax.Updater( obj, url,{ method: methods, parameters: params});
}