wb=(WebView) findViewById(R.id.webView1);
 wb.getSettings().setAppCacheEnabled(true);
 wb.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
 wb.getSettings().setSupportMultipleWindows(true);
 wb.setWebViewClient(new WebViewClient(){@Override
 public boolean shouldOverrideUrlLoading(WebView view, String url) {
 view.loadUrl(url);
 return true;
 }});
wb.setWebChromeClient(new WebChromeClient() {
@Override
public boolean onJsAlert(WebView view, String url, String message,           JsResult    result)
  {
            //Required functionality here
            return super.onJsAlert(view, url, message, result);
   }});
wb.loadUrl("http://potatohut.com/pos/dev/");
wb.getSettings().setJavaScriptEnabled(true);
wb.loadUrl("http://potatohut.com/pos/dev/");
wb.getSettings().setLoadWithOverviewMode(true);
wb.getSettings().setLoadsImagesAutomatically(true);