function pop_up(pagina) {
	var w = 530;
	var h = 150;
	var l = Math.floor((screen.width-w)/2);
	var t = Math.floor((screen.height-h)/2);
	window.open(pagina,"","width=" + w + ",height=" + h + ",top=" + t + ",left=" + l);
	}

function grande(pagina) {
	var w = 435;
	var h = 320;
	var l = Math.floor((screen.width-w)/2);
	var t = Math.floor((screen.height-h)/2);
	window.open(pagina,"","width=" + w + ",height=" + h + ",top=" + t + ",left=" + l);
	}

function sortByNome(a,b){
	return (a.nome < b.nome) ? -1 : 1;
	}
	
function sortByZona(a,b){
	return (a.zona < b.zona) ? -1 : 1;
	}
function sortByTipo(a,b){
	return (a.tipo < b.tipo) ? -1 : 1;
	}

function movePromoSlide(){
	newsNegozi.next();return false;
	}
function moveNewsLiberty(){
	newsLiberty.next();return false;
	}
	
var currentSort = '';

function writeList(a){
	if (currentSort != a){
		if (a == "a"){
			negozi.sort(sortByNome);
			} else if (a == "b"){
			negozi.sort(sortByTipo);
			} else if (a == "c"){
			negozi.sort(sortByZona);
			}
		var myhtml = '<div class="box_negozi"><a href="javascript:writeList(\'a\')" title="'+tn+'"><h3>'+dn+'<\/h3><\/a><ul>';
		for (var i=0; i<negozi.length; i++) {
			myhtml += '<a href="negozio.php?'+negozi[i].id+'"><li>'+negozi[i].nome+'<\/li><\/a>';
			}
		myhtml +=  '<\/ul><\/div><div class="box_negozi"><a href="javascript:writeList(\'b\')" title="'+tt+'"><h3>'+dt+'<\/h3><\/a><ul>';
	    for (var i=0; i<negozi.length; i++) {
			myhtml += '<li>'+negozi[i].tipo+'<\/li>';
			}
		myhtml += '<\/ul><\/div><div class="box_negozi"><a href="javascript:writeList(\'c\')" title="'+tz+'"><h3>'+dz+'<\/h3><\/a><ul>';
	    for (var i=0; i<negozi.length; i++) {
			myhtml += '<li>'+negozi[i].zona+'<\/li>';
			}	
		myhtml += '<\/ul><\/div>';
		document.getElementById("prova").innerHTML = myhtml;
		}
	currentSort = a;
	}