in base alla risoluzione browser?

[Quinn]

scusate ma una cosa così:

                                                                        <script type="text/javascript"><!--
                                        google_ad_client = "pub-1562514156143341";
                                        if ( screen.width < 910 || parseInt(navigator.appVersion) > 3) ){google_ad_width = 120;google_ad_height = 600;google_ad_format = "120x600_as";}
                                        else{google_ad_width = 160;google_ad_height = 600;google_ad_format = "160x600_as";}
                                        google_ad_type = "text";
                                        google_ad_channel ="";
                                        google_color_border = "D6CC16";
                                        google_color_bg = "FFFFFF";
                                        google_color_link = "FF6600";
                                        google_color_url = "FF9900";
                                        google_color_text = "676767";
                                        //--></script>
                                        <script type="text/javascript"
                                          src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
                                        </script> 

non si può fare?