var mReader = {};
mReader.url = "http://m.metroer.com/feed.php";
mReader.template = "<li><a href=\"{link}\">{title}</a></li>";
mReader.go = function(container,num){
	if(typeof $ == "undefined") {
		alert("jquery is not loaded");
		return ;
	}
	
	$.get("/service/proxy?url="+this.url,function(data){
		html = "";
		try{
			var tmp = "";
			items = data.getElementsByTagName("item");
			if(num>items.length) num = items.length;
			for(i=0;i<num;i++){
				tmp = mReader.template;
				html += tmp.replace("{title}", items[i].getElementsByTagName("title")[0].firstChild.nodeValue).replace("{link}", items[i].getElementsByTagName("link")[0].firstChild.nodeValue);
			}
			$("#"+container).append(html);
		}catch(e){}
	});
}