function rssItemControl(buble, func) {
		if (func != 'single') {
			var mainElem = document.getElementById("rssmaincontainer");
			var allChilds = mainElem.getElementsByTagName("div");
			for (var i = 0; i < allChilds.length; i++) {
				if (allChilds[i].id != null && allChilds[i].id.indexOf("subcontainer") > -1) {
					var contentElement = document.getElementById(allChilds[i].id);
					var parentElement = contentElement.parentNode;
					var headerElement = parentElement.getElementsByTagName(feedEntryHeaderTag);
					if (func == 'expand') {
						contentElement.style.display = "block";
						headerElement[0].className = "rss_subheader";
					} else {
						contentElement.style.display = "none";
						headerElement[0].className = "rss_subheader_closed";
					}
				}
			}
		} else {
				var parentBuble = buble.parentNode;
				var contentElement = "";
				var dstatus = "";
				var childs = parentBuble.childNodes;
				for (var i = 0; i < childs.length; i++) {
					if (childs[i].id != null && childs[i].id.indexOf("subcontainer") > -1) {
						var contentElement = document.getElementById(childs[i].id);
						dstatus = contentElement.style.display;				
					if (dstatus.length == 0) {
						contentElement.style.display = "none";
						buble.className = "rss_subheader_closed";
					} else {
						if (dstatus == "none") {
							contentElement.style.display = "block";
							buble.className = "rss_subheader";
						} else {
							contentElement.style.display = "none";
							buble.className = "rss_subheader_closed";
						}
					}
				}
			}
		}
	}