// Aug 1, 2008 - Brian Ballard - Created for Georgia Log Cabin
// Oct 4, 2008 - Brian Ballard - Added locale date/time formats & browser status line
// This script reads an RSS file on your server and displays it on your web page.
// Save this JavaScript file to your server and include it on your page, like this:
//
// To actually show the headlines, add an onload call to your page's body tag, like this:
//
// Or call this script near the end of your page like this:
//
// Include a div in your page where you want the headlines to appear, like this:
// Loading headlines...
// You can also specify a category on links, like this:
// http://www.yourdomain.com/yourpath/yourpage.html?National
// ------------------------------------------
// Set this to your RSS file name
var headlinesFile = "/news/headlines2.xml";
//var headlinesFile = "/cgi/proxy.pl?http://feedproxy.google.com/PoliticalNewsHeadlinesFromGeorgiaLogCabinRepublicans";
// Set this to the div id where you want your headlines to show up.
var destinationDiv = "headlines";
// Translate or update these if you wish, othwerise leave them as is.
var msg1 = "Your browser does not support AJAX.";
var msg2 = "There was a problem getting the headlines file.";
var msg3 = "Posted";
var msg4 = "Showing headlines in";
var msg5 = "Show all";
var msg6 = "No headlines found.";
var msg7 = "in";
var msg8 = "Click to show only headlines in";
var msg9 = "Click to show all headlines";
var msg10 = "Click to read the full story";
var msg11 = "Available categories";
var dayNames = new Array("Sun","Mon","Tue","Wed","Thu","Fri","Sat"); // short day names
//var dayNames = new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"); //long day names
var monNames = new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"); // short month names
//var monNames = new Array("January","February","March","April","May","June","July","August","Septempber","October","November","December"); //long month names
// ------------------------------------------
// You shouldn't have to change anything else
var thisDate = new Date();
var tz = thisDate.getTimezoneOffset();
var newsItems = new Array();
var xmlHttp;
// Get the RSS file
function getHeadlines() {
try { // Firefox, Opera 8.0+, Safari
xmlHttp = new XMLHttpRequest();
} catch (e) { // Internet Explorer
try {
xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {
document.getElementById(destinationDiv).innerHTML = msg1;
return false;
}
}
}
xmlHttp.onreadystatechange = onResponse;
xmlHttp.open("GET", headlinesFile, true);
xmlHttp.send(null);
}
// Handle the file return
function onResponse() {
if ( xmlHttp.readyState == 4 ) {
if ( xmlHttp.status == 200 ) {
parseRss();
displayHeadlines();
} else {
document.getElementById(destinationDiv).innerHTML = msg2;
}
}
}
// Item object prototype
function itemObj(t,d,l,p,c1,c2) {
this.title = t;
this.description = d;
this.link = l;
this.pubDate = p;
this.cat1 = c1;
this.cat2 = c2;
}
// Fills item objects with item data from the RSS XML file
function parseRss() {
var theseItems = xmlHttp.responseXML.documentElement.getElementsByTagName("item");
var lang = navigator.language ? navigator.language.toLowerCase() : navigator.userLanguage.toLowerCase();
for ( i = 0; i < theseItems.length; i++ ) {
try {
theseTitles = theseItems[i].getElementsByTagName("title");
try {
thisTitle = theseTitles[0].firstChild.nodeValue;
} catch(e) { thisTitle = ""; }
} catch(e) { thisTitle = ""; }
try {
theseDescriptions = theseItems[i].getElementsByTagName("description");
try {
thisDescription = theseDescriptions[0].firstChild.nodeValue;
} catch(e) { thisDescription = ""; }
} catch(e) { thisDescription = ""; }
try {
theseLinks = theseItems[i].getElementsByTagName("link");
try {
thisLink = theseLinks[0].firstChild.nodeValue;
} catch(e) { thisLink = ""; }
} catch(e) { thisLink = ""; }
try {
thesePubDates = theseItems[i].getElementsByTagName("pubDate");
try {
thisPubDate = thesePubDates[0].firstChild.nodeValue;
} catch(e) { thisPubDate = ""; }
} catch(e) { thisPubDate = ""; }
// Put GMT pubDate into locale format, e.g. "Tue, Mar 23, 2008, 2:46pm" or "Tue, 23 Mar 2008, 14:46"
if ( thisPubDate ) {
thisDate.setTime(Date.parse(thisPubDate)-tz);
dow = dayNames[thisDate.getDay()];
dd = thisDate.getDate();
mon = monNames[thisDate.getMonth()];
yyyy = thisDate.getFullYear();
hh = thisDate.getHours();
mm = thisDate.getMinutes();
if ( mm < 10 ) { mm = "0" + mm; }
// Choose a date format based on the broswer language
if (lang == "en" || lang == "en-us" || lang == "undefined" || lang == "") {
// US date/time formats
if ( hh > 11 ) { mm += "pm"; } else { mm += "am"; }
if ( hh > 12 ) { hh -= 12; }
if ( hh == 0 ) { hh = "12"; }
// Long US date/time format, e.g. Tue, Mar 23, 2008, 2:46pm
//thisPubDate = dow + ", " + mon + " " + dd + ", " + yyyy + ", " + hh + ":" + mm;
// Short US date format, e.g. Tue, Mar 23
thisPubDate = dow + ", " + mon + " " + dd;
} else {
// Euro date/time formats
if ( hh == 0 ) { hh = "00"; }
// Long Euro date/time format, e.g. Tue, 23 Mar 2008, 14:46
//thisPubDate = dow + ", " + dd + " " + mon + " " + yyyy + ", " + hh + ":" + mm;
// Short Euro date format, e.g. Tue, 23 Mar
thisPubDate = dow + ", " + dd + " " + mon;
}
}
try {
theseCategories = theseItems[i].getElementsByTagName("category");
try {
thisCat1 = theseCategories[0].firstChild.nodeValue;
} catch(e) { thisCat1 = ""; }
try {
thisCat2 = theseCategories[1].firstChild.nodeValue;
} catch(e) { thisCat2 = ""; }
} catch(e) { thisCat1 = ""; thisCat2 = ""; }
newsItems[i] = new itemObj(thisTitle,thisDescription,thisLink,thisPubDate,thisCat1,thisCat2);
}
}
// Step through items array, printing out items in an optional matching category
function displayHeadlines(cat) {
var txt = "";
var txt2 = "";
var txt3 = "";
var catCounts = new Array();
// Check for category on URL like page.html?National
if ( !cat && window.location.search ) {
// Remove the ? if the category is from an URL query string
cat = window.location.search.substring(1);
}
if ( cat && (cat != "none") ) {
// Indicate which category is being displayed and link to all categories
txt += "" + msg4 + " " + cat + " (" + msg5 + ")
";
}
for ( var i = 0; i < newsItems.length; i++ ) {
if ( !cat || cat == "none" || cat.toLowerCase() == newsItems[i].cat1.toLowerCase() || cat.toLowerCase() == newsItems[i].cat2.toLowerCase() ) {
// add each item to HTML text
txt2 += "" + newsItems[i].title + "
" + msg3 + ": " + newsItems[i].pubDate;
if ( newsItems[i].cat1 ) { txt2 += " " + msg7 + " " + newsItems[i].cat1 + ""; }
if ( newsItems[i].cat2 ) { txt2 += " & " + newsItems[i].cat2 + ""; }
txt2 += "
" + newsItems[i].description + "
";
}
if (newsItems[i].cat1) {
if ( catCounts[newsItems[i].cat1] ) {
catCounts[newsItems[i].cat1] += 1;
} else {
catCounts[newsItems[i].cat1] = 1;
}
}
if ( newsItems[i].cat2 ) {
if ( catCounts[newsItems[i].cat2] ) {
catCounts[newsItems[i].cat2] += 1;
} else {
catCounts[newsItems[i].cat2] = 1;
}
}
}
if ( txt2 == "" ) { txt2 = msg6; }
txt += txt2;
for (var j in catCounts) {
txt3 += "" + j + " (" + catCounts[j] + "), ";
}
txt3 += "" + msg5 + "";
txt = txt + "" + msg11 + ": " + txt3 + "
";
document.getElementById(destinationDiv).innerHTML = txt;
}