function showArticle(sURL,sColor) {
	
	    if(sColor=="") sColor = "default"
	    
		var oFilter = document.createElement("div");
		var oDiv = document.createElement("div");
		
		oFilter.id = "filter";
		oDiv.id = "info_box";
		
		oFilter.className = "filter";
		oDiv.className = "info_popup background_" + sColor;
		
		oDiv.innerHTML = '<div class="top"></div><div class="middle"><div class="left"></div>'
		oDiv.innerHTML += '<div class="center"><iframe width="100%" height="100%" frameborder="0" border="0" src="' + sURL + '?color='+sColor+'"></iframe></div>'
		oDiv.innerHTML += '<div class="right"></div></div><div class="bottom"></div>'
		
		resizeFilter(oFilter,oDiv)
		
		document.body.appendChild(oFilter)
		document.body.appendChild(oDiv)
	
		window.onresize = function() {resizeFilter()}	
	
	}
	
	function resizeFilter() {
		var oFilter
		var oDiv
		if(arguments.length>0) {
			oFilter = arguments[0]
			oDiv = arguments[1]
		} else {
			oFilter = document.getElementById('filter');
			oDiv = document.getElementById('info_box');
		}
		
		oFilter.style.width = document.documentElement.clientWidth+'px';
		oFilter.style.height = document.documentElement.scrollHeight+'px';
		
		var iWidth = 640;
		oDiv.style.marginLeft = (document.documentElement.clientWidth-640)/2+'px';
	}
	
	function closeArticle() {
		var oFilter = document.getElementById('filter');
		var oDiv = document.getElementById('info_box');
		oDiv.parentNode.removeChild(oDiv)
		oFilter.parentNode.removeChild(oFilter)
	}