var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};

filtro = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-]{2,})+\.)+([a-zA-Z0-9]{2,})+$/;
function conferma_newsletter() {
	filtro = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-]{2,})+\.)+([a-zA-Z0-9]{2,})+$/;
	if(document.form_newsletter.email.value=='' || filtro.test(document.form_newsletter.email.value)==false) {
		alert("Inserisci un indirizzo e-mail");
		document.form_newsletter.email.focus();
		return;
	}
	document.form_newsletter.submit();
}
function controlla_areaclienti() {
	if(document.form_areaclienti.email.value=="" || document.form_areaclienti.password.value=="" || document.form_areaclienti.email.value=="Username") return false;
	 else return true;
}
function controlla_toplogin() {
	if(document.toplogin.email.value=="" || document.toplogin.password.value=="" || document.toplogin.email.value=="Username") return false;
	 else return true;
}
function mostra(div){
	if(document.getElementById(div)!==null) {
		if(document.getElementById(div).style.display=="block") document.getElementById(div).style.display="none";
		 else document.getElementById(div).style.display="block";
	}
}
function esistonovarianti() {
	alert('Non č possibile aggiungere questo prodotto nel carrello da qui perchč esistono pių varianti di questo prodotto. Cliccare sul nome e scegliere la variante dalla scheda prodotto');
}
function focus_ricerca() {
	if(document.getElementById('search_query').value=="Ricerca prodotto") {
		document.getElementById('search_query').value="";
		document.getElementById('search_query').style.color="#000000";
	}
}
function blur_ricerca() {
	if(document.getElementById('search_query').value=="") {
		document.getElementById('search_query').value="Ricerca prodotto";
		document.getElementById('search_query').style.color="#f0eff2";
	}
}
function sottomenu(numero) {
	for(i=1;document.getElementById('sottomenu'+i)!==null;i++) {
		if(i==numero && document.getElementById('sottomenu'+i).style.display!='block') document.getElementById('sottomenu'+i).style.display='block';
		 else document.getElementById('sottomenu'+i).style.display='none';
	}
}
function submit_newsletter() {
	if(document.form_newsletter.newsletter_email.value!="") {
		document.form_newsletter.submit();
	}
}
function mostra_categorie() {
	if(document.getElementById("menu_categorie").style.display=="block") document.getElementById("menu_categorie").style.display="none";
	 else document.getElementById("menu_categorie").style.display="block";
}
function mostra_sottocategoria(pid) {
	if(document.getElementById("sottocategoria"+pid).style.display=="block") {
		document.getElementById("sottocategoria"+pid).style.display="none";
		document.getElementById("linksottocategoria"+pid).style.backgroundColor="#4ea723";
	} else {
		var elementi=getElementsByClassName("sottocategoria",'',document.body);
		for (var i = 0; i < elementi.length; i++) {
			elementi[i].style.display="none";
		}
		document.getElementById("sottocategoria"+pid).style.display="block";
		
		var elementi=getElementsByClassName("linksottocategoria",'',document.body);
		for (var i = 0; i < elementi.length; i++) {
			elementi[i].style.backgroundColor="#4ea723";
		}
		document.getElementById("sottocategoria"+pid).style.display="block";
		document.getElementById("linksottocategoria"+pid).style.backgroundColor="#2a5714";
		
	}
}
function check_newsletter() {
	if(document.getElementById("newsletter_acconsento").checked==false || document.getElementById("newsletter_email").value=="" || document.getElementById("newsletter_chiave").value.trim()=="") return false;
	return true;
}
function focus_username() {
	if(document.getElementById("toplogin_username").value=="Email") document.getElementById("toplogin_username").value="";
}
function blur_username() {
	if(document.getElementById("toplogin_username").value=="") document.getElementById("toplogin_username").value="Email";
}
function focus_password() {
	if(document.getElementById("toplogin_password").value=="Password") document.getElementById("toplogin_password").value="";
}
function blur_password() {
	if(document.getElementById("toplogin_password").value=="") document.getElementById("toplogin_password").value="Password";
}
function privacy() {
	finestra = window.open('privacy.php','Privacy','scrollbars=yes,resizable=no,width=400,height=350,status=no,location=no,toolbar=no');
}