//funzione per aggiungere il riferimento all'articolo originale quando viene effettuata una copia
	function copy(lingua){
		var urlLocation = document.location.href;
		//recupero il testo in lingua da inserire
		var j=getTestoCopyByLingua(lingua,urlLocation);
		m = document.getElementsByTagName("body")[0];
		var f = document.createElement("div");
    	f.style.overflow = "hidden";
    	f.style.color = "#000000";
    	f.style.backgroundColor = "transparent";
    	f.style.textAlign = "left";
    	f.style.textDecoration = "none";
    	f.style.border = "none";
		if (typeof window.getSelection != "undefined") {
    		var n = window.getSelection();
    		if (n.toString()) if (typeof n.setBaseAndExtent != "undefined") {

			   var p = n.getRangeAt(0);
    		    f.style.width = 0.1;
    	        f.style.height = 0.1;
    	        f.style.position = "absolute";
    	        f.style.top = "-1000px";
    	        f.style.left = "-1001px";
    	        f.appendChild(p.cloneContents());
    	        f.appendChild(document.createElement("br"));
    	        f.appendChild(document.createElement("br"));
    	        var A = document.createElement("span");
    	        A.innerHTML = j;
    	        f.appendChild(A);
    	        f.appendChild(document.createElement("br"));
    	        j = f.innerText.length;
    	        m.appendChild(f);
    	        if (f.innerText.length != j) f.style.overflow = "";
    		        n.selectAllChildren(f);
    			    window.setTimeout(function () {
    	            	f.parentNode.removeChild(f);
    	           		window.getSelection().setBaseAndExtent(p.startContainer, p.startOffset, p.endContainer, p.endOffset)
    	       		}, 0)
    		}
    		else {

	    		h = document.createElement("div");
	    		//h.style.display = "none";
	    		m.appendChild(h);
    	    	f.innerHTML = "<br>" + j + "<br>";
	    	    h.appendChild(document.createElement("br"));
    			h.appendChild(f);
    			h.appendChild(document.createElement("br"));
    			m = document.createRange();
	    		m.selectNode(f);
    			n.addRange(m);
    			window.setTimeout(function () {
    				h.parentNode.removeChild(h)
	    		}, 0)
    		}
    	}
    	else {

    		var t = document.documentElement.scrollLeft || document.body.scrollLeft,
				u = document.documentElement.scrollTop || document.body.scrollTop;
    		h = document.createElement("div");
    		h.style.visibility = "hidden";
    	    h.style.overflow = "hidden";
    	    h.style.position = "absolute";
    		h.style.left = t + 20 + "px";
    		h.style.top = u + 20 + "px";
    		h.style.width = "1px";
    		h.style.height = "1px";
    		m.appendChild(h);
    		var v = document.selection.createRange();
    		f.innerHTML = v.htmlText + "<br><br>" + j + "<br>";
    		h.appendChild(document.createElement("br"));
    		h.appendChild(f);
    		h.appendChild(document.createElement("br"));
    		n = m.createTextRange();
    		n.moveToElementText(f);
    		n.select();
    		window.setTimeout(function () {
    			h.parentNode.removeChild(h);
    			if (v.text != "") {
    				v.select();
    				document.documentElement.scrollLeft = t;
    				document.body.scrollLeft = t;
    				document.documentElement.scrollTop = u;
    				document.body.scrollTop = u
    			}
    		}, 0)
			}
		}

function getTestoCopyByLingua(lingua,urlLocation){
	var j="";
	if(lingua!=null){
	switch (lingua)
			{
				case "it":
				   j="  <br/> Testo proveniente dalla pagina  <a href='"+urlLocation+"'>"+urlLocation+"</a>";
					break;
				case "de":
					j="  <br/> Dieser Text stammt von der Webseite <a href='http://www.lg-on.de'>http://www.lg-on.de</a>";
					break;
			}
	}else{
	j="  <br/> Text from page  <a href='"+urlLocation+"'>"+urlLocation+"</a>";
	}
	return j;
}