/*	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);
	
	var xmlRequest;
    
    if (window.XMLHttpRequest)
    {
        xmlRequest =new XMLHttpRequest();
    }
    else // Internet Explorer 5/6
    {
        xmlRequest = new ActiveXObject("Microsoft.XMLHTTP");
    }
	
	xmlRequest.open('GET', rssFeed, false);          
    xmlRequest.send(); 
    
    ms_responseText = xmlRequest.responseText;

	try
	{
		if (window.DOMParser)
        {
            parser=new DOMParser();
            xmlNewsDoc=parser.parseFromString(ms_responseText,"text/xml");
        }
        else 
        {
            xmlNewsDoc=new ActiveXObject("Microsoft.XMLDOM");
            xmlNewsDoc.async=false;
		    xmlNewsDoc.loadXML(ms_responseText);
        }
	
		
	}
	
	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)
	{
	    mi_max = items.length;
	    
	    if (mi_max > 8){mi_max=8;}
	    
		var buffer = "";
		for(var i=items.length-1; i> items.length - mi_max; 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,"(::Link::)",getNode('link',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;
	}
}