rem: if (loaded != this.url) { 
add: if (!OpenLayers.Util.isEquivalentUrl(loaded, this.url)) { 
context:     checkImgURL: function () {        // Sometimes our image will load after it has already been removed        // from the map, in which case this check is not needed.          if (this.layer) {            var loaded = this.layer.alpha ? this.imgDiv.firstChild.src : this.imgDiv.src;            if (loaded != this.url) {                this.imgDiv.style.display = "none";            }        }    },
meta: 4411	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4411/08a3329394ad0c2f7f44366dee0695372ffdb50b/Image.js/buggy/lib/OpenLayers/Tile/Image.js