add: var zoom = this.getZoom(); var extent = this.map.getMaxExtent(); 
context:     getURL: function (bounds) {        var deg = this.lzd/Math.pow(2,this.getZoom());        var x = Math.floor((bounds.left - extent.left)/deg);        var y = Math.floor((bounds.bottom - extent.bottom)/deg);        return this.getFullRequestString(              { L: zoom,                 X: x,                Y: y              });    },
meta: 4411	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4411/1eead27fafa0a3a830b68f5821fd46f70fba5eaf/WorldWind.js/buggy/lib/OpenLayers/Layer/WorldWind.js