open govtrack to district

.swift

    func setWebViewMapWith(state: String, district: String) {
        if (district != "0") {
            districtUrl = "https://www.govtrack.us/congress/members/embed/mapframe?state=\(state)&district=\(district)"
        }else {
            districtUrl = "https://www.govtrack.us/congress/members/embed/mapframe?state=\(state)"
        }
        setWebViewUrl(districtUrl)
    }
    
    func setWebViewUrl(url: String) {
        let targetUrl = NSURL (string: districtUrl);
        let requestObj = NSURLRequest(URL: targetUrl!);
        districtWebView.loadRequest(requestObj);
    }