function lang(q){
	if(typeof _LANG[q] != "undefined"){
		if(arguments.length==1)return _LANG[q];
		else{
			var r=_LANG[q],re;
			for(var i=1;i<arguments.length;i++){
				re=new RegExp("%"+i,"g");
				r=r.replace(re,arguments[i]);
			}
			return r;
		}
	}
}

function cambiaLingua(q){
	location.href=location.href.replace(/\/\w{2}\//,"/"+q+"/");
}

// menu selector

document.observe("dom:loaded",function(){
	var voceSel="";
	switch($_GET["tpl"]){
		case"tpl_index":
		case"tpl_prodotti_detail":
			voceSel=$("vocemenu-tpl_index");
		break;
		case"tpl_page":
			voceSel=$("vocemenu-"+$_GET["sqlpam1"]);
		break;
		case"tpl_news":
		case"tpl_news_detail":
			voceSel=$("vocemenu-tpl_news");
		break;
	}
	if(voceSel!="")voceSel.down("a").addClassName("sel");
});

// fading bg //

shuffle = function(o){ //v1.0
	for(var j, x, i = o.length; i; j = parseInt(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
	return o;
};


var preloaded=0;
if(typeof bgimg=="undefined")var bgimg=[];
bgimg=shuffle(bgimg.compact());

var bgcontainers=[
	"montagne-0",
	"montagne-1"
];

function onPreloaded(){
	preloaded++;
	preloadNext();
}

function preloadNext(){
	if(typeof bgimg[preloaded]!="undefined"){
		var img=new Element("img",{src:bgimg[preloaded]});
		$("preload-bg").insert(img);
		if(img.readAttribute("complete")==0){
			setTimeout("preloadNext()",1000);
		}else{
			onPreloaded();
		}
	}
}

var wait=5;
var current=0;
var wait_current=wait;

function fadeBg(){
	if(wait_current>=wait){
		wait_current=1;
		var immagini=$$("#preload-bg img");
		if (immagini.length>current){
			var questo=current%2;
			var quello=1-questo;
			$(bgcontainers[quello]).hide().setStyle({backgroundImage:"url("+bgimg[current]+")"});
			new Effect.Appear(bgcontainers[quello]);
			new Effect.Fade(bgcontainers[questo]);
			current++;
			if(current>=bgimg.length)current=0;
		}
	}else{
		wait_current++;
	}
}

document.observe("dom:loaded",function(){
	preloadNext();
	new PeriodicalExecuter(fadeBg,1);
});

// window resize //

var resizecount=1;
function footerResize(){
	var co=$("footerBg").cumulativeOffset();
	var footer_top      = co[1];
	var footer_height   = $("footerBg").getHeight();
	var viewport_height = document.viewport.getHeight();
	var siteHeight      = footer_top+footer_height;
//	resizecount++;
//	if(resizecount==2){
//		resizecount=0;
		if(viewport_height>siteHeight){
			$("footerBg").setStyle({height:(viewport_height-footer_top)+"px"});
			bgcontainers.each(function(c){
				$(c).setStyle({height:viewport_height+"px"});
			});
		}else{
		//	$("footerBg").setStyle({height:"auto"});
			bgcontainers.each(function(c){
				$(c).setStyle({height:siteHeight+"px"});
			});
		}
//	}
}
Event.observe(window,"load",footerResize);
Event.observe(document.onresize ? document : window, "resize", footerResize);

// footer browser fix

document.observe("dom:loaded",function(){
	if(is.IE&&navigator.version<7){
		$("fg1").removeClassName("alpha");
	}else{
		$("fg0").remove();
	}
});