I've solved this problem with the following code.thank you for help me..
myprotocol.handleResponse = function (resp, opt) {
console.log("handleResponse was called");
var features = geojson.read(resp.priv.responseText);
for (var i in features) {
var feature = features[i];
feature.attributes.iconUrl = katman.iconUrl;
feature.attributes.fillColor = katman.fillColor;
feature.attributes.fillOpacity = katman.fillOpacity;
feature.attributes.graphicHeight = katman.graphicHeight;
feature.attributes.graphicOpacity = katman.graphicOpacity;
feature.attributes.graphicWidth = katman.graphicWidth;
feature.attributes.graphicXOffset = katman.graphicXOffset;
feature.attributes.graphicYOffset = katman.graphicYOffset;
feature.attributes.pointRadius = katman.pointRadius;
feature.attributes.pointerEvents = katman.pointerEvents;
feature.attributes.rotation = katman.rotation;
feature.attributes.strokeColor = katman.strokeColor;
feature.attributes.strokeDashstyle = katman.strokeDashstyle;
feature.attributes.strokeLinecap = katman.strokeLinecap;
feature.attributes.strokeOpacity = katman.strokeOpacity;
feature.attributes.strokeWidth = katman.strokeWidth;
}
layer.addFeatures(features);
};