var xmlHttp;

var xmlFile;

var startDay = "20061204";



var rk_scode = getParameterJS("scode");

var rk_tot = getParameterJS("tot");

var rk_len = getParameterJS("len");



//OBJECTS



//objects inside the RSS2Item object

function RSS2Enclosure(encElement)

{

	if (encElement == null)

	{

		this.url = null;

		this.length = null;

		this.type = null;

	}

	else

	{

		this.url = encElement.getAttribute("url");

		this.length = encElement.getAttribute("length");

		this.type = encElement.getAttribute("type");

	}

}



function RSS2Guid(guidElement)

{

	if (guidElement == null)

	{

		this.isPermaLink = null;

		this.value = null;

	}

	else

	{

		this.isPermaLink = guidElement.getAttribute("isPermaLink");

		this.value = guidElement.childNodes[0].nodeValue;

	}

}



function RSS2Source(souElement)

{

	if (souElement == null)

	{

		this.url = null;

		this.value = null;

	}

	else

	{

		this.url = souElement.getAttribute("url");

		this.value = souElement.childNodes[0].nodeValue;

	}

}



//object containing the RSS 2.0 item

function RSS2Item(itemxml)

{

	//required

	this.title;

	this.link;

	this.description;



	//optional vars

	this.author;

	this.comments;

	this.pubDate;

	this.category;



	//optional objects

	this.rsscategory;

	this.enclosure;

	this.guid;

	this.source;



	var properties = new Array("title", "link", "description", "author", "comments", "pubDate", "category");

	var tmpElement = null;

	for (var i=0; i<properties.length; i++)

	{

		tmpElement = itemxml.getElementsByTagName(properties[i])[0];

		if (tmpElement != null && tmpElement.childNodes[0] != null) {

			eval("this."+properties[i]+"=tmpElement.childNodes[0].nodeValue");

		}

	}



	this.rsscategory = new RSS2Category(itemxml.getElementsByTagName("category")[0]);

	this.enclosure = new RSS2Enclosure(itemxml.getElementsByTagName("enclosure")[0]);

	this.guid = new RSS2Guid(itemxml.getElementsByTagName("guid")[0]);

	this.source = new RSS2Source(itemxml.getElementsByTagName("source")[0]);

}



//objects inside the RSS2Channel object

function RSS2Category(catElement)

{

	if (catElement == null)

	{

		this.domain = null;

		this.value = null;

	}

	else

	{

		this.domain = catElement.getAttribute("domain");

		this.value = catElement.childNodes[0].nodeValue;

	}

}



//object containing RSS image tag info

function RSS2Image(imgElement)

{

	if (imgElement == null)

	{

	this.url = null;

	this.link = null;

	this.width = null;

	this.height = null;

	this.description = null;

	}

	else

	{

		imgAttribs = new Array("url","title","link","width","height","description");

		for (var i=0; i<imgAttribs.length; i++)

			if (imgElement.getAttribute(imgAttribs[i]) != null)

				eval("this."+imgAttribs[i]+"=imgElement.getAttribute("+imgAttribs[i]+")");

	}

}



//object containing the parsed RSS 2.0 channel

function RSS2Channel(rssxml)

{

//alert("rss2channel");

	//required

	this.title;

	this.link;

	this.description;



	//array of RSS2Item objects

	this.items = new Array();



	//optional vars

	this.language;

	this.copyright;

	this.managingEditor;

	this.webMaster;

	this.pubDate;

	this.lastBuildDate;

	this.generator;

	this.docs;

	this.ttl;

	this.rating;



	//optional objects

	this.rsscategory;

	this.image;



	var chanElement = rssxml.getElementsByTagName("channel")[0];

	var itemElements = rssxml.getElementsByTagName("item");



	for (var i=0; i<itemElements.length; i++)

	{

		Item = new RSS2Item(itemElements[i]);

		this.items.push(Item);

		//chanElement.removeChild(itemElements[i]);

	}



	var properties = new Array("title", "link", "description", "language", "copyright", "managingEditor", "webMaster", "pubDate", "lastBuildDate", "generator", "docs", "ttl", "rating");

	var tmpElement = null;

	for (var i=0; i<properties.length; i++)

	{

		tmpElement = chanElement.getElementsByTagName(properties[i])[0];

		if (tmpElement != null && tmpElement.childNodes[0] != null) {

			eval("this."+properties[i]+"=tmpElement.childNodes[0].nodeValue");

		}

	}



	if (document.getElementById("LASTBUILDDATE") != "undefined" && document.getElementById("LASTBUILDDATE") != null){

		document.getElementById("LASTBUILDDATE").innerHTML = this.lastBuildDate; 

	}



	this.rsscategory = new RSS2Category(chanElement.getElementsByTagName("category")[0]);

	this.image = new RSS2Image(chanElement.getElementsByTagName("image")[0]);

}



//PROCESSES



//uses xmlhttpreq to get the raw rss xml

function getRSS()

{

	//call the right constructor for the browser being used

	if (window.ActiveXObject)

		xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");

	else if (window.XMLHttpRequest)

		xmlHttp = new XMLHttpRequest();

	else {

		//alert("not supported");

		return;

	}



	//prepare the xmlhttprequest object

	xmlFile = getFile ();

	xmlHttp.open("GET", xmlFile, true);

	xmlHttp.setRequestHeader("Cache-Control", "no-cache");

	xmlHttp.setRequestHeader("Pragma", "no-cache");

	xmlHttp.onreadystatechange = function() {

		if (xmlHttp.readyState == 4)

		{

//alert(xmlHttp.status);

			if (xmlHttp.status == 200)

			{

				if (xmlHttp.responseText != null)

					processRSS(xmlHttp.responseXML);

				else

				{

					//alert("Failed to receive RSS file from the server - file not found.");

					return false;

				}

			}

			else {

				//alert("Error code " + xmlHttp.status + " received: " + xmlHttp.statusText);

			}

		}

	}





	//send the request

	xmlHttp.send(null);

}



//processes the received rss xml

function processRSS(rssxml)

{

	RSS = new RSS2Channel(rssxml);

	showRSS(RSS);

}



//shows the RSS content in the browser

function showRSS(RSS)

{

//alert("showrss");



	//populate the items

	var title = "", updown = "", rankstr = "", des = "", catstr = "", imgstr = "", viewCount = "";

	if (rk_tot != -1) rk_tot = (RSS.items.length > rk_tot) ? rk_tot : RSS.items.length;

	else rk_tot = RSS.items.length;



	for (var i=0; i<rk_tot; i++)

	{

		title = RSS.items[i].title;

		if (title == null)	title = "";

		des = RSS.items[i].description;

		if (des == null)	des = "";

		catstr = RSS.items[i].category;

		imgstr = RSS.items[i].comments;

		if (typeof(imgstr) != "undefined" && imgstr != "" && imgstr.indexOf("^") != -1) {

			imgstr = imgstr.substring(0, imgstr.indexOf("^"));

		}

		

		if (title.indexOf("<!-- ") != -1 && title.indexOf(" -->") != -1) {

			title = title.substring(0,title.indexOf("<!-- "));



			updown = title.substring(title.indexOf("<!-- ")+5, title.indexOf(" -->"));

			

			if (updown.charAt(0) == "+") {

				rankstr = "<div class=rankUp><img src=http://image.chosun.com/common/200611/sys/ico_rank_up.gif align=absmiddle> " + updown.substring(1) + "</div>";

			}

			else if (updown.charAt(0) == "-") {

				rankstr = "<div class=rankDn><img src=http://image.chosun.com/common/200611/sys/ico_rank_dn.gif align=absmiddle> " + updown.substring(1) + "</div>";

			}

			else if (updown == "1") {

				rankstr = "<div class=rankUp><img src=http://image.chosun.com/common/200611/sys/ico_rank_up.gif align=absmiddle> New</div>";

			}

			else {

				rankstr = "<div class=rankNm><img src=http://image.chosun.com/common/200611/sys/ico_rank_nm.gif align=absmiddle> 0</div>";

			}

		}



		title = title.replace (/&lt;/gi,"<");

		title = title.replace (/&gt;/gi,">");

		title = title.replace (/&amp;/gi,"&");

		title = title.replace (/&quot;/gi,"\"");

		title = title.replace (/&#39;/gi,"'");



		if (title != "" && rk_len != -1 && title.length > rk_len) title = title.substring(0, rk_len) + "..";

		

		if (document.getElementById("TEXT" +(i+1)) != "undefined" && document.getElementById("TEXT"+(i+1)) != null) {

			if (rk_site == "mylinker") {

				document.getElementById("TEXT" +(i+1)).innerHTML = "<a href=" + RSS.items[i].link + " target=_blank>" + title + "</a>"; 

			}

			else {

				document.getElementById("TEXT" +(i+1)).innerHTML = "<a href=" + RSS.items[i].link + " target=_top>" + title + "</a>"; 

			}

		}



		if (document.getElementById("URL" +(i+1)) != "undefined" && document.getElementById("URL" +(i+1)) != null) {

			document.getElementById("URL" +(i+1)).href = RSS.items[i].link; 

		}

		if (document.getElementsByName("URL" +(i+1)) != "undefined" && document.getElementsByName("URL" +(i+1)).length > 1) {

			for (no = 0; no < document.getElementsByName("URL" +(i+1)).length; no++) {

				document.getElementsByName("URL" +(i+1))[no].href = RSS.items[i].link; 

			}

		}

		

		if (document.getElementById("TITLE" +(i+1)) != "undefined" && document.getElementById("TITLE" +(i+1)) != null) {

			document.getElementById("TITLE" +(i+1)).innerHTML = title; 

		}

		if (document.getElementsByName("TITLE" +(i+1)) != "undefined" && document.getElementsByName("TITLE" +(i+1)).length > 1) {

			for (no = 0; no < document.getElementsByName("TITLE" +(i+1)).length; no++) {

				document.getElementsByName("TITLE" +(i+1))[no].innerHTML = title; 

			}

		}



		if (document.getElementById("RANK" +(i+1)) != "undefined" && document.getElementById("RANK" +(i+1)) != null)

			document.getElementById("RANK" +(i+1)).innerHTML = rankstr; 



		if (document.getElementById("CONT" +(i+1)) != "undefined" && document.getElementById("CONT" +(i+1)) != null) {

			if (des != "" && des.length > rk_contlen) des = des.substring(0, rk_contlen) + "..";

			document.getElementById("CONT" +(i+1)).innerHTML = des;

		}



		if (document.getElementById("CATEGORY" +(i+1)) != "undefined" && document.getElementById("CATEGORY" +(i+1)) != null)

			document.getElementById("CATEGORY" +(i+1)).innerHTML = catstr; 

			

		if (document.getElementById("IMG" +(i+1)) != "undefined" && document.getElementById("IMG" +(i+1)) != null) {

			if (imgstr != null) {

				document.getElementById("IMG" +(i+1)).src = imgstr;

			}

		}

		

		viewCount = "";

		if (des.indexOf("<!-- ") != -1 && des.indexOf(" -->") != -1) {

			if (des.indexOf("<!-- total:") != -1) {

				viewCount = des.substring(des.indexOf("<!-- total:")+11, des.indexOf(" -->", des.indexOf("<!-- total:")));;

			} 

		}

		if (document.getElementById("VIEWCOUNT" +(i+1)) != "undefined" && document.getElementById("VIEWCOUNT" +(i+1)) != null) {

			document.getElementById("VIEWCOUNT" +(i+1)).innerHTML = viewCount; 

		}



	}

	return true;

}



getRSS();



function getFile () {



	if (typeof(RANK_SCODE) != "undefined")		rk_scode = RANK_SCODE;

	if (typeof(RANK_LEN) != "undefined")		rk_len = RANK_LEN;

	if (typeof(RANK_TOT) != "undefined")		rk_tot = RANK_TOT;

	

	if (rk_scode == null || rk_scode == "")	rk_scode = "index";

	if (rk_tot == null || rk_tot == "")	rk_tot = -1;

	if (rk_len == null || rk_len == "")	rk_len = -1;



	if(rk_scode == "BLOG_MAIN"){

		rk_scode = "blogmain_hour";

	}



	if(rk_scode == "month"){

		tmp = "/web_file/blognews/month.xml";

	}else if(rk_scode == "hour"){

		tmp = "/web_file/blognews/hour.xml";

	}else if(rk_scode == "blogmain_hour"){

		tmp = "/web_file/blognews/blogmain_hour.xml";

	}else{

		tmp = "/web_file/blognews/week.xml";

	}

//alert(tmp);

	return tmp;

}