var f;
var timerID;
function loadTextFile(){
	if($("rssurl").value == ""){
		return;
	}
	if(f) return;
	fName	= $("rssurl").value;
	httpObj		= createXMLHttpRequest(displayData);
	if(httpObj){
		httpObj.open("GET",fName,true);
		httpObj.send(null);
	}
}

function displayData(){
	if((httpObj.readyState == 4)&&(httpObj.status == 200)){
		xmlData					= httpObj.responseXML;
		ChannelTag				= xmlData.getElementsByTagName("channel");
		ChannelTitle			= ChannelTag[0].getElementsByTagName("title")[0].childNodes[0].nodeValue;
		ChannelURL				= ChannelTag[0].getElementsByTagName("link")[0].childNodes[0].nodeValue;
		ChannelDescription		= ChannelTag[0].getElementsByTagName("description")[0].childNodes[0].nodeValue;

		$("channel_title").value	= ChannelTitle;
		$("channel_url").value		= ChannelURL;
		$("channel_summary").value	= ChannelDescription;
		f	= true;
		stopWatch();
	}else{
		return;
	}
}

function beginWatch(){
	timerID	= setInterval('loadTextFile()',1000);
}

function stopWatch(){
	clearInterval(timerID);
}