function getFeed(feed) {
            var newScript = document.createElement('script');
                newScript.type = 'text/javascript';
                newScript.src = 'http://pipes.yahoo.com/pipes/9oyONQzA2xGOkM4FqGIyXQ/run?&_render=json&_callback=piper&feed='+feed;
            document.getElementsByTagName("head")[0].appendChild(newScript);
         }

         function piper(feed) {

            var winddir ='';
            var windspd ='';
            var rssdata ='';
            var startofwinddata ='';
            var startofwindspd ='';
            var endofwinddata ='';
            var winddatalength ='';
            var startofupdatetime ='';
            var updatetime ='';
            var endofwindspd ='';
            var kts = ' kts';

            rssdata = feed.value.items[0].description;
            startofwinddata=16+rssdata.indexOf('Wind Direction:');
            endofwinddata=rssdata.indexOf('Wind Speed');
            winddatalength=endofwinddata-startofwinddata;
            startofwindspd=7+rssdata.indexOf('Speed:');
            endofwindspd=rssdata.indexOf('mph');
            startofupdatetime=rssdata.indexOf('Updated:');
            windspd=rssdata.slice((startofwindspd),(endofwindspd));
            windspd=Math.round(windspd*0.8688) //convert mph to kts
            updatetime=rssdata.slice(startofupdatetime,(startofupdatetime+17));
            winddir=rssdata.slice(startofwinddata,(startofwinddata+winddatalength-3));

if (windspd < 5){rwy='23'; windspd='Calm'; kts=''}else

            if (winddir=="Variable"||winddir=="ESE"||winddir=="SE"||winddir=="SSE"||winddir=="South"||winddir=="SSW"||winddir=="SW"||winddir=="WSW"||winddir=="West"||winddir=="WNW")
               {rwy="23";}else
               {rwy="05";}



            document.getElementById('windsock').innerHTML='&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img src="graphics/windsock.gif" height=22 width=22 alt="windsock"></img>'+'<hr />'+'&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Weather<br />&nbsp;&nbsp;Glasgow Airport<hr />'+'Wind Dir: '+winddir+'<br />Wind Spd: '+windspd+kts+'<hr />Runway in use: '+rwy+'<hr />'+updatetime+'<hr /><font size=0.8em><a href="http://www.wunderground.com/">Weather Underground</a></font>';
         }