// styles to have no color override var elements = get_ajax_tags(); var numelements = elements.length; for (var index=0;index!=numelements;index++) { var element = elements[index]; element.style.color=usecolor; } } function set_ajax_obs( name, value ) { // store away the current value in both the doc and the span as lastobs="value" // change color if value != lastobs var element = document.getElementById(name); if (! element ) { return; } // V1.04 -- don't set if missing the tag var lastobs = element.getAttribute("lastobs"); element.setAttribute("lastobs",value); if (value != unescape(lastobs)) { element.style.color = flashcolor; } element.innerHTML = value; } function set_ajax_uom( name, onoroff ) { // this function will set an ID= to visible or hidden by setting the style="display: " // from 'inline' or 'none' var element = document.getElementById(name); if (! element ) { return; } if (onoroff) { element.style.display='inline'; } else { element.style.display='none'; } } // --- end of flash-green functions function windDir (winddir) // Take wind direction value, return the // text label based upon 16 point compass -- function by beeker425 // see http://www.weather-watch.com/smf/index.php/topic,20097.0.html { windlabel = new Array("N", "NNE", "NE", "ENE", "E", "ESE", "SE", "SSE", "S", "SSW", "SW", "WSW", "W", "WNW", "NW", "NNW"); return windlabel[Math.floor(((parseInt(winddir) + 11) / 22.5) % 16 )]; } // utility functions to handle conversions from clientraw data to desired units-of-measure function convertTemp ( rawtemp ) { if (useunits == 'E') { // convert C to F return( (1.8 * rawtemp) + 32.0); } else { // leave as C return (rawtemp * 1.0); } } function convertWind ( rawwind ) { if (useKnots) { return(rawwind * 1.0); } //force usage of knots for speed if (useunits == 'E') { // convert knots to mph return(rawwind * 1.1507794); } else { if (useMPS) { // convert knots to m/s return (rawwind * 0.514444444); } else { // convert knots to km/hr return (rawwind * 1.852); } } } function convertBaro ( rawpress ) { if (useunits == 'E') { // convert hPa to inHg return (rawpress / 33.86388158); } else { return (rawpress * 1.0); // leave in hPa } } function convertRain ( rawrain ) { if (useunits == 'E') { // convert mm to inches return (rawrain * .0393700787); } else { return (rawrain * 1.0); // leave in mm } } function convertHeight ( rawheight ) { if (useunits == 'E') { // convert feet to meters if metric return (Math.round(rawheight * 1.0).toFixed(0)); // leave in feet } else { return (Math.round(rawheight / 3.2808399).toFixed(0)); } } /* function ajax_get_beaufort ( wind ) { // return a phrase for the beaufort scale based on wind knots (native WD format) if (wind < 1 ) {return("Calm"); } if (wind < 4 ) {return("Light air"); } if (wind < 7 ) {return("Light breeze"); } if (wind < 11 ) {return("Gentle breeze"); } if (wind < 17 ) {return("Moderate breeze"); } if (wind < 22 ) {return("Fresh breeze"); } if (wind < 28 ) {return("Strong breeze"); } if (wind < 34 ) {return("Near gale"); } if (wind < 41 ) {return("Gale"); } if (wind < 48 ) {return("Strong gale"); } if (wind < 56 ) {return("Storm"); } if (wind < 64 ) {return("Violent storm"); } if (wind >= 64 ) {return("Hurricane"); } return("unknown " + wind); } */ function ajax_getUVrange ( uv ) { // code simplified by FourOhFour on wxforum.net var uvword = "Unspec."; if (uv <= 0) { uvword = "None"; } else if (uv < 3) { uvword = " Low "; } else if (uv < 6) { uvword = " Medium "; } else if (uv < 8) { uvword = " High "; } else if (uv < 11) { uvword = " Very High "; } else { uvword = " Extreme "; } return uvword; } // end ajax_getUVrange function function ajax_genarrow( nowTemp, yesterTemp, Legend, textUP, textDN, numDp) { // generate an tag with alt= and title= for rising/falling values var diff = nowTemp.toFixed(3) - yesterTemp.toFixed(3); var absDiff = Math.abs(diff); var diffStr = '' + diff.toFixed(numDp); // sprintf("%01.0f",$diff); var absDiffStr = '' + absDiff.toFixed(numDp); // sprintf("%01.0f",$absDiff); var image = ''; var msg = ''; if (diff == 0) { // no change image = ' '; } else if (diff > 0) { // today is greater // msg = textUP + " by " + diff.toFixed(1); // sprintf($textDN,$absDiff); msg = textUP.replace(/\%s/,absDiffStr); image = " $\""$ "; } else { // today is lesser msg = textDN.replace(/\%s/,absDiffStr); // sprintf($textDN,$absDiff); // msg = textDN.replace(/\%s/,absDiffStr); image = " $\""$ "; } if (Legend) { return (diff + Legend + image); } else { return image; } } // end genarrow function // Mike Challis' counter function (adapted by Ken True) // function ajax_countup() { element = document.getElementById("ajaxcounter"); if (element) { element.innerHTML = counterSecs; counterSecs++; } } // ------------------------------------------------------------------------------------------ // main function.. read clientraw.txt and format areas // ------------------------------------------------------------------------------------------ function ajaxLoader(url) { if (document.getElementById) { var x = false; try { x = new XMLHttpRequest(url); } catch (trymicrosoft) { try { x = new ActiveXObject("Msxml2.XMLHTTP"); } catch (othermicrosoft) { try { x = new ActiveXObject("Microsoft.XMLHTTP"); } catch (failed) { x = false; } } } if (!x) { alert("Error initializing XMLHttpRequest!"); } } if (x) { x.onreadystatechange = function() { try { if (x.readyState == 4 && x.status == 200) { // Mike Challis added fix to fix random error: NS_ERROR_NOT_AVAILABLE var clientraw = x.responseText.split(','); var temp = clientraw[2]; set_ajax_obs("ajaxtemp", temp + uomTemp); // set_ajax_obs("ajaxbigtemp",temp + uomTemp); var humidity = clientraw[5]; set_ajax_obs("ajaxhumidity",humidity + uomHumidity); var dew = clientraw[6]; set_ajax_obs("ajaxdew",dew + uomTemp); if (temp > 80) { var heatidx = 16.923 + (1.85212 * Math.pow(10,-1) * temp) + (5.37941 * humidity) - (1.00254 * Math.pow(10,-1) * temp * humidity) + (9.41695 * Math.pow(10,-3) * Math.pow(temp,2)) + (7.28898 * Math.pow(10,-3) * Math.pow(humidity,2)) + (3.45372 * Math.pow(10,-4) * Math.pow(temp,2) * humidity) - (8.14971 * Math.pow(10,-4) * temp * Math.pow(humidity,2)) + (1.02102 * Math.pow(10,-5) * Math.pow(temp,2) * Math.pow(humidity,2)) - (3.86460 * Math.pow(10,-5) * Math.pow(temp,3)) + (2.91583 * Math.pow(10,-5) * Math.pow(humidity,3)) + (1.42721 * Math.pow(10,-6) * Math.pow(temp,3) * humidity) + (1.97483 * Math.pow(10,-7) * temp * Math.pow(humidity,3)) - (2.18429 * Math.pow(10,-8) * Math.pow(temp,3) * Math.pow(humidity,2)) + (8.43296 * Math.pow(10,-10) * Math.pow(temp,2) * Math.pow(humidity,3)) - (4.81975 * Math.pow(10,-11) * Math.pow(temp,3) * Math.pow(humidity,3)); if (heatidx < temp) { heatidx = temp; } else { set_ajax_obs("ajaxheatidx",heatidx.toFixed(1) + uomTemp); } } /* var feelslike = temp; if (temp < 50 && windchill < temp) { feelslike = windchill; //use WindChill } else if (temp > 80 && heatidx > temp) { feelslike = heatidx; //use Humidex } else { feelslike = temp; // use temperature } feelslike = Math.round(convertTemp(feelslike)); set_ajax_obs("ajaxfeelslike",feelslike + uomTemp); */ var pressure = clientraw[7]; // pressure = pressure * 1.0; set_ajax_obs("ajaxbaro",pressure + uomBaro); set_ajax_obs("ajaxbarotrendtext",clientraw[8]); var wind = clientraw[9]; var gust = convertWind(clientraw[12]); // beaufort = ajax_get_beaufort(clientraw[9]); // set_ajax_obs("ajaxbeaufort",beaufort); var val = windDir(clientraw[10]); if (wind > 0.0) { set_ajax_obs("ajaxwind",wind + uomWind); // set_ajax_uom("ajaxwinduom",true); set_ajax_obs("ajaxwindicon"," $\"Wind$ "); set_ajax_obs("ajaxwinddir",val); } else { set_ajax_obs("ajaxwind","Calm"); // set_ajax_uom("ajaxwinduom",false); set_ajax_obs("ajaxwindicon"," "); set_ajax_obs("ajaxwinddir",""); } /* if (gust > 0.0) { set_ajax_obs("ajaxgust",gust + uomWind); set_ajax_uom("ajaxgustuom",true); } else { set_ajax_obs("ajaxgust","None"); set_ajax_uom("ajaxgustuom",false); } */ /* if (wind > 0.0) { set_ajax_obs("ajaxwindicon"," $\"Wind$ "); set_ajax_obs("ajaxwinddir",val); } else { set_ajax_obs("ajaxwindicon"," "); set_ajax_obs("ajaxwinddir",""); } */ if (temp < 50) { var windchill = 35.74 + 0.6215 * temp - 35.75 * Math.pow(wind, 0.16) + 0.4275 * temp * Math.pow(wind, 0.16); if (windchill > temp) { windchill = temp; } else { set_ajax_obs("ajaxwindchill",windchill.toFixed(1) + uomTemp); } } var rain = clientraw[11]; var rainratehr = clientraw[20]; /* if (rain == 0) { set_ajax_obs("ajaxrain","—"); set_ajax_obs("ajaxrainratehr",""); } else { */ set_ajax_obs("ajaxrain",rain + uomRain); set_ajax_obs("ajaxrainratehr",rainratehr + uomRainR); // } var uv = clientraw[16]; var uvword = ajax_getUVrange(uv); if (uv == 0) { // set_ajax_obs("ajaxuv","—"); set_ajax_obs("ajaxuv",uv); set_ajax_obs("ajaxuvword",""); set_ajax_uom("ajaxuvword",false); } else { set_ajax_obs("ajaxuv",uv); set_ajax_obs("ajaxuvword",uvword); set_ajax_uom("ajaxuvword",true); } var solar = clientraw[17]; // if (solar == 0) { // set_ajax_obs("ajaxsolar","—"); // } else { set_ajax_obs("ajaxsolar",solar + uomSolar); // } /* var rainmo = clientraw[18]; set_ajax_obs("ajaxrainmo",rainmo + uomRain); var rainyr = clientraw[19]; set_ajax_obs("ajaxrainyr",rainyr + uomRain); */ // current date and time of observation in clientraw.txt var ajaxtimeformat = clientraw[0]; var ajaxdateformat = clientraw[1]; //ajaxtimeformat = ajaxtimeformat.split('-')[1]; ajaxtimeformat = ajaxtimeformat.replace( " " , ""); ajaxtimeformat = ajaxtimeformat.toLowerCase(); set_ajax_obs("ajaxdatetime",ajaxdateformat + " " + ajaxtimeformat); set_ajax_obs("ajaxdate",ajaxdateformat); set_ajax_obs("ajaxtime",ajaxtimeformat); var datetime = new Date(); var ts = datetime.getTime(); if (lastajaxtimeformat != ajaxtimeformat) { if (lastajaxtimeformat == 'unknown' || ajaxtimeformat > lastajaxtimeformat + 2) { // set_ajax_obs("ajaxtrafficmapLA"," $\"Los$ "); // set_ajax_obs("ajaxtrafficmapOC"," $\"Orange$ "); // set_ajax_obs("ajaxtrafficmapIE"," $\"Inland$ "); // set_ajax_obs("ajaxtrafficmapSD"," $\"San$ "); set_ajax_obs("ajaxtrafficmapLA"," $\"Los$ "); set_ajax_obs("ajaxtrafficmapOC"," $\"Orange$ "); set_ajax_obs("ajaxtrafficmapIE"," $\"Inland$ "); set_ajax_obs("ajaxtrafficmapSD"," $\"San$ "); // //set_ajax_obs("ajaxtrafficmap"," $\"Traffic$ "); } counterSecs = 0; // reset timer lastajaxtimeformat = ajaxtimeformat; // remember this time } element = document.getElementById("ajaxindicator"); if (element) { element.style.color = flashcolor; } } // END if (x.readyState == 4 && x.status == 200) } // END try catch(e){} // Mike Challis added fix to fix random error: NS_ERROR_NOT_AVAILABLE } // END x.onreadystatechange = function() { x.open("GET", url, true); x.send(null); setTimeout("reset_ajax_color('')",flashtime); // change text back to default color setTimeout("ajaxLoader(clientrawFile + '?' + new Date().getTime())", reloadTime); // get new data after 5 secs } } // end ajaxLoader function // element = document.getElementById("ajaxcounter"); // if (element) { window.setInterval("ajax_countup()", 1000); // run the counter for seconds since update // } // invoke when first loaded on page if (! ajaxLoaderInBody) { ajaxLoader(clientrawFile + '?' + new Date().getTime(), reloadTime); } // ]]>