Handle bing

// handle Bing search request resultsfunction handleBingResponse() {   
hideDivs("noresults");    var json = this.responseText.trim();   
var jsobj = {};    // try to parse JSON results   
try {        if (json.length) jsobj = JSON.parse(json);   
} catch(e) {        renderErrorMessage("Invalid JSON response");    }    
// show raw JSON and HTTP request   
showDiv("json", 
preFormat(JSON.stringify(jsobj, null, 2)));   
showDiv("http", preFormat("GET " + this.responseURL + "\n\nStatus: " + this.status + " " +         
this.statusText + "\n" + this.getAllResponseHeaders()));   
// if HTTP response is 200 OK, try to render search results    
if (this.status === 200) {        var clientid = this.getResponseHeader("X-MSEdge-ClientID");      
if (clientid) retrieveValue(CLIENT_ID_COOKIE, clientid);       
if (json.length) {            if (jsobj._type === "SearchResponse") {              
renderSearchResults(jsobj);            } else {               
renderErrorMessage("No search results in JSON response");            }        } else {   
renderErrorMessage("Empty response (are you sending too many requests too quickly?)");      
}    if (divHidden("pole") && divHidden("mainline") && divHidden("sidebar"))        
showDiv("noresults", "No results.<p><small>Looking for restaurants or other local businesses? 
Those currently areen't supported outside the US.</small>");    }    
// Any other HTTP status is an error    else {       
// 401 is unauthorized; force re-prompt for API key for next request       
if (this.status === 401) invalidateSearchKey();        // some error responses don't have a top-level errors object, 
so gin one up        var errors = jsobj.errors || [jsobj];        var errmsg = [];        
// display HTTP status code        errmsg.push("HTTP Status " + this.status + " " + this.statusText + "\n");        // add all fields from all error responses     
for (var i = 0; i < errors.length; i++) {            if (i) errmsg.push("\n");        
for (var k in errors[i]) errmsg.push(k + ": " + errors[i][k]);        }        // also display Bing Trace ID if it isn't blocked by CORS        var traceid = this.getResponseHeader("BingAPIs-TraceId");      
if (traceid) errmsg.push("\nTrace ID " + traceid);        // and display the error message        renderErrorMessage(errmsg.join("\n"));    }}