// 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; if ( doTooltip ) { element.setAttribute("title",'AJAX tag '+name); } } element.innerHTML = value; } // Mike Challis' counter function (adapted by Ken True) // function ajax_countup() { element = document.getElementById("ajaxcounter"); if (element) { element.innerHTML = counterSecs; counterSecs++; } } /* if (iconWD >= 0 && iconWD <= 35) { return (" $\"Current$ " ); } else { return ''; } } function ajax_wxIconJPG ( iconWD ) { // perform a lookup and return the graphic for the condition icon (using NWS icons) $iconList = new Array( "ra1.jpg", // 0 nothing "ra1.jpg", // 1 drizzle "ra1.jpg", // 2 light rain "ra.jpg", // 3 rain "ra.jpg", // 4 Moderate rain "ra.jpg", // 5 Heavy rain "ra.jpg", // 6 Very Heavy rain "ra.jpg", // 7 Downpour "ra.jpg", // 8 Torrential rain "ovc.jpg", // 9 imageovercast.visible "bkn.jpg", // 10 imagecloudy.visible "sct.jpg", // 11 imagedry.visible "few.jpg", // 12 imagemainlyfine.visible "skc.jpg", // 13 imagesunny.visible /* "skc.jpg", // 0 imagesunny.visible "nskc.jpg", // 1 imageclearnight.visible "bkn.jpg", // 2 imagecloudy.visible "sct.jpg", // 3 imagecloudy2.visible "nbkn.jpg", // 4 imagecloudynight.visible "sct.jpg", // 5 imagedry.visible "fg.jpg", // 6 imagefog.visible "hazy.jpg", // 7 imagehaze.visible "ra.jpg", // 8 imageheavyrain.visible "few.jpg", // 9 imagemainlyfine.visible "mist.jpg", // 10 imagemist.visible "nfg.jpg", // 11 imagenightfog.visible "nra.jpg", // 12 imagenightheavyrain.visible "novc.jpg", // 13 imagenightovercast.visible "nra.jpg", // 14 imagenightrain.visible "nshra.jpg", // 15 imagenightshowers.visible "nsn.jpg", // 16 imagenightsnow.visible "ntsra.jpg", // 17 imagenightthunder.visible "ovc.jpg", // 18 imageovercast.visible "bkn.jpg", // 19 imagepartlycloudy.visible "ra.jpg", // 20 imagerain.visible "ra.jpg", // 21 imagerain2.visible "shra.jpg", // 22 imageshowers2.visible "ip.jpg", // 23 imagesleet.visible "ip.jpg", // 24 imagesleetshowers.visible "sn.jpg", // 25 imagesnow.visible "sn.jpg", // 26 imagesnowmelt.visible "sn.jpg", // 27 imagesnowshowers2.visible "skc.jpg", // 28 imagesunny.visible "scttsra.jpg", // 29 imagethundershowers.visible "hi_tsra.jpg", // 30 imagethundershowers2.visible "tsra.jpg", // 31 imagethunderstorms.visible "nsvrtsra.jpg", // 32 imagetornado.visible "wind.jpg", // 33 imagewindy.visible "ra1.jpg", // 34 stopped rainning "windyrain.jpg" // 35 windy/rain (new with V2.11) ); */ /* if (iconWD >= 0 && iconWD <= 35) { return (" $\"Current$ " ); } else { return ''; } } */ // ------------------------------------------------------------------------------------------ // main function.. read metlogcsv.txt and format areas // ------------------------------------------------------------------------------------------ function ajaxLoader(url) { if (document.getElementById) { var x = (window.ActiveXObject) ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest(url); } if (x) { // got something back x.onreadystatechange = function() { try { if (x.readyState == 4 && x.status == 200) { // Mike Challis added fix to fix random error: NS_ERROR_NOT_AVAILABLE var metlogcsv = x.responseText.split(','); // now make sure we got the entire metlogcsv.txt -- thanks to Johnnywx. Not used here // valid metlogcsv.txt has 'metlog' at start of record // If we have a valid metlogcsv file AND updates is < maxupdates if(metlogcsv[0] == 'metlog' && ( updates <= maxupdates || maxupdates > 0 ) ) { if (maxupdates > 0 ) {updates++; } // increment counter if needed. //DATA EXTRACT SECTION // Rain data and date and time. raintoday=metlogcsv[1]+" mm"; // //raintoday=raintoday.toFixed(2)+" mm";// not required? set_ajax_obs("ajaxrain",raintoday); timelastrain=metlogcsv[2];//+", "+metlogcsv[3]+", "+metlogcsv[4];// where metlogcsv[2]= day name, metlogcsv[3]= day and month last rain, metlogcsv[4] =time last rain. set_ajax_obs("ajaxtimelastrain",timelastrain); rainrate=metlogcsv[3]+" mm/hr";// current rain rate. set_ajax_obs("ajaxrainrate",rainrate); maxrainrate=metlogcsv[6]+" mm/hr";// maximum rain rate today. set_ajax_obs("ajaxmaxrainrate",maxrainrate); timemaxrainrate=metlogcsv[7]+", "+metlogcsv[8];// where metlogcsv[7]= day name, metlogcsv[8]= time maximum rain. Valid only on rain today. set_ajax_obs("ajaxtimemaxrainrate",timemaxrainrate); // Sun data and date and time. suntoday=metlogcsv[7]+" hrs";// metlogcsv[9] = sunshine hours. set_ajax_obs("ajaxsun",suntoday); timelastsun=metlogcsv[8]+" "+metlogcsv[9]+" "+metlogcsv[10];//where metlogcsv[10]= day name, metlogcsv[11]= day and month last sun, metlogcsv[12] =time last sun. set_ajax_obs("ajaxtimelastsun",timelastsun); // Weather conditions description text. currcond=metlogcsv[11];//current weather conditions from Met4Net data. Only valid between dawn and dusk. set_ajax_obs("ajaxcurrcond",currcond); // Weather conditions icon. Currently not used. currcondicon=metlogcsv[1]; set_ajax_obs("ajaxcurrcondicon",currcondicon); //Metlog date andtime clocktime=metlogcsv[13]; set_ajax_obj("ajaxclocktime",clocktime); // current date and time. Only used in this program to reset counter. ajaxtimeformat ='Harrow,_UK-'+ new Date().getTime(); ajaxdateformat = new Date(); //set_ajax_obs("ajaxdatetime",ajaxdateformat + " " +ajaxtimeformat); set_ajax_obs("ajaxdate",ajaxdateformat); set_ajax_obs("ajaxtime",ajaxtimeformat); if (lastajaxtimeformat != ajaxtimeformat) { counterSecs = 0; // reset timer lastajaxtimeformat = ajaxtimeformat; // remember this time } // now ensure that the indicator flashes on every AJAX fetch element = document.getElementById("ajaxindicator"); if (element) { element.style.color = flashcolor; } if (maxupdates > 0 && updates > maxupdates-1) { /* chg indicator to pause message */ set_ajax_obs("ajaxindicator",langPauseMsg); } set_ajax_obs('ajaxupdatecount',updates); /* for test pages */ set_ajax_obs('ajaxmaxupdatecount',maxupdates); /* for test pages */ } } // 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); // reset the flash colors, and restart the update unless maxupdate limit is reached setTimeout("reset_ajax_color('')",flashtime); // change text back to default color if ( (maxupdates == 0) || (updates < maxupdates-1)) { setTimeout("ajaxLoader(metlogcsvdat + '?' + new Date().getTime())", reloadTime); // get new data } } } // 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(metlogcsvdat + '?' + new Date().getTime(), reloadTime); } // ]]>