/**
 * gets the metadata for this map instance from server as a json object
 */
AjaxQuery.MetaData=AjaxQuery.JsonResponse.extend({
	task:"echo",
	identify:function(mapItem,json)
	{
	AjaxQuery.IdentifyMap(mapItem,json);
	}
});

var LayersMetaDataRequest=AjaxQuery.MetaData.extend({
	task:"layers_metadata"
});

var CategoriesMetaDataRequest=AjaxQuery.MetaData.extend({
	task:"categories_metadata"
});

var UsersMetaDataRequest=AjaxQuery.MetaData.extend({
	task:"users_metadata"
});

var IconSetMetaDataRequest=AjaxQuery.MetaData.extend({
	task:"iconset_metadata"
});