/*	Simple Javascript RSS Reader Version 1.0
Copyright (c) 2006 CS Truter
Written by Christoff Truter
email: Christoff@cstruter.com - (Please let me know if you intend to use the script) */

/* Replace all occurances of a string
(Parameters) totalValue:'complete string'
oldValue:'value to be replaced' newValue:'value used for replace' */

function Replace(totalValue,oldValue,newValue)
{
while(totalValue.indexOf(oldValue) > -1)
totalValue=totalValue.replace(oldValue,newValue);
return totalValue;
}

/* Get XML Node
(Parameters) TagName:'XML Element' node:'Element row number' */

function getNode(TagName, node)
{
var currentNode = (node == null) ? xmlDoc.getElementsByTagName(TagName) :
items[node].getElementsByTagName(TagName);
if(currentNode.length > 0)
return currentNode[0].firstChild.nodeValue;
}

/* Load XML Object
(Parameters) rssFeed:'RSS File' Body:'Layer for RSS Body' Title:'Layer for RSS Title' */

function ReadRSS(rssFeed, Body, Title)
{
rssTitle = document.getElementById(Title);
rssBody = document.getElementById(Body);

try
{
if (document.all)
{
var errorHappendHere = "Check Browser and security settings";
xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
}
else
{
var errorHappendHere = "Apparently one cant read remote xml via firefox, please copy the file to your server";
xmlDoc = document.implementation.createDocument("","",null);
}

xmlDoc.async=false;
xmlDoc.load(rssFeed);

items=xmlDoc.getElementsByTagName('item');
SetRSSTemplates();
}

catch(e)
{
rssTitle.innerHTML = 'Error occured';
rssBody.innerHTML = 'Thrown Error:'+e.message+"<br/>Note: "+errorHappendHere;
}
}

/* Set HTML Template
Did it this way to make the look and feel of the feed easy customizable, dont like mixing
layout with code. */

function SetRSSTemplates()
{
if (rssBody)
{
var buffer = "";
for(var i=0; i< items.length; i++)
{
var output = (document.all) ? Replace(rssBody.innerHTML,"(::Link::)",getNode('link',i))
: Replace(rssBody.innerHTML,"%28::Link::%29",getNode('link',i));
output = Replace(output,"(::Title::)",getNode('title',i));
output = Replace(output,"(::Pubdate::)",getNode('pubDate',i));
output = Replace(output,"(::Description::)",getNode('description',i));
buffer+=output;
}
rssBody.innerHTML = buffer;
}

if (rssTitle)
{
var output = Replace(rssTitle.innerHTML,"(::Title::)",getNode('title'));
output = (document.all) ? Replace(output,"(::Link::)",getNode('link'))
: Replace(output,"%28::Link::%29",getNode('link'));
output = Replace(output,"(::Description::)",getNode('description'));
rssTitle.innerHTML = output;
}
}