/**
 * Namespace: Util.OSM
 */
OpenLayers.Util.OSM = {};


/**
 * Class: OpenLayers.Layer.OSM.Mapnik
 *
 * Inherits from:
 *  - <OpenLayers.Layer.OSM>
 */
OpenLayers.Layer.OSM.Mapnik = OpenLayers.Class(OpenLayers.Layer.OSM, {
    /**
     * Constructor: OpenLayers.Layer.OSM.Mapnik
     *
     * Parameters:
     * name - {String}
     * options - {Object} Hashtable of extra options to tag onto the layer
     */
    initialize: function(name, options) {
        var url = [
            "//a.tile.openstreetmap.org/${z}/${x}/${y}.png",
            "//b.tile.openstreetmap.org/${z}/${x}/${y}.png",
            "//c.tile.openstreetmap.org/${z}/${x}/${y}.png"
        ];
        options = OpenLayers.Util.extend({ numZoomLevels: 19, buffer: 0,
           attribution : '© <a target="_parent" href="http://www.openstreetmap.org">OpenStreetMap</a> and contributors, under an <a target="_parent" href="http://www.openstreetmap.org/copyright">open license</a>' }, options);
        var newArguments = [name, url, options];
        OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
    },

    CLASS_NAME: "OpenLayers.Layer.OSM.Mapnik"
});

/**
 * Class: OpenLayers.Layer.OSM.MapQuestOpen
 *
 * Inherits from:
 *  - <OpenLayers.Layer.OSM>
 */
OpenLayers.Layer.OSM.MapQuestOpen = OpenLayers.Class(OpenLayers.Layer.OSM, {
    /**
     * Constructor: OpenLayers.Layer.OSM.MapQuestOpen
     *
     * Parameters:
     * name - {String}
     * options - {Object} Hashtable of extra options to tag onto the layer
     */
    initialize: function(name, options) {
        var url = [
            "http://otile1.mqcdn.com/tiles/1.0.0/osm/${z}/${x}/${y}.png",
            "http://otile2.mqcdn.com/tiles/1.0.0/osm/${z}/${x}/${y}.png",
            "http://otile3.mqcdn.com/tiles/1.0.0/osm/${z}/${x}/${y}.png",
            "http://otile4.mqcdn.com/tiles/1.0.0/osm/${z}/${x}/${y}.png"
        ];
        options = OpenLayers.Util.extend({ numZoomLevels: 19, buffer: 0 }, options);
        var newArguments = [name, url, options];
        OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
    },

    CLASS_NAME: "OpenLayers.Layer.OSM.MapQuestOpen"
});

/**
 * Class: OpenLayers.Layer.OSM.CycleMap
 *
 * Inherits from:
 *  - <OpenLayers.Layer.OSM>
 */
OpenLayers.Layer.OSM.CycleMap = OpenLayers.Class(OpenLayers.Layer.OSM, {
    /**
     * Constructor: OpenLayers.Layer.OSM.CycleMap
     *
     * Parameters:
     * name - {String}
     * options - {Object} Hashtable of extra options to tag onto the layer
     */
    initialize: function(name, options) {
        var url = [
            "http://a.tile.opencyclemap.org/cycle/${z}/${x}/${y}.png",
            "http://b.tile.opencyclemap.org/cycle/${z}/${x}/${y}.png",
            "http://c.tile.opencyclemap.org/cycle/${z}/${x}/${y}.png"
        ];
        options = OpenLayers.Util.extend({ numZoomLevels: 19, buffer: 0 }, options);
        var newArguments = [name, url, options];
        OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
    },

    CLASS_NAME: "OpenLayers.Layer.OSM.CycleMap"
});