function isReturn(e){
    var characterCode;
    if(e && e.which){
        e = e;
        characterCode = e.which;
    }else{
        characterCode = e.keyCode;
    }

    if(characterCode == 13){
        return true; 
    }else{
        return false; 
    }
}

function mostra_opzioni() {
	var opz=document.getElementById('opzioni_js');
	opz.className='';
}

function controlla(){
	var prov=document.forms[0].provincia.options[document.forms[0].provincia.selectedIndex].value
	if ((prov=="Regione") || (prov=="Tutte")){
		alert("Selezionare una provincia");
		return false;
  	}

	var caratteri=document.forms[0].valore.value;
	if ((caratteri.length==2) || (caratteri.length==1)) {
	alert('Inserire almeno 3 caratteri nel testo da cercare.');
	return false;
	}
}

function controlla_mecc(){
	var caratteri=document.getElementById('CODICE').value;
	if (caratteri.length<10) {
		alert('Codice Meccanografico non valido. Il codice meccanografico è composto da 10 caratteri, per esempio BOAA112233');
		return false;
	}
}

function listaComuni(){
	var nome=document.getElementById('form1');
	var prov=document.forms[0].provincia.options[document.forms[0].provincia.selectedIndex].value
	var href="/bdp/anagrafe/comune?CODICE="+prov;
	if ((prov=="Regione") || (prov=="Tutte")){
		alert("Selezionare una provincia");
		document.forms[0].provincia.focus();
		return false;
  	}
	popup=window.open(href,'comuni','width=500,height=280');
	popup.creator=self;
	return true;
}

function SelezionaComune(){
	var comune=document.forms[0].comune.options[document.forms[0].comune.selectedIndex].text;
	var comune_code=document.forms[0].comune.options[document.forms[0].comune.selectedIndex].value;
	window.close();
	creator.InserisciComune(comune, comune_code);
}

function InserisciComune(com, cod){
	document.forms[0].comune.value=com;
	document.forms[0].comune_code.value=cod;
}


function random() {
	var k=1;
	var esiste='true';
	while (document.getElementById('NW_'+k)){
		var nw0=document.getElementById('NW_'+k);
		nw0.className='invisibile';
		k=k+1;
	}
	var el=k-1;
	if (el>0) {
		var i=Math.floor(Math.random() * el) + 1;
		var nw1=document.getElementById('NW_'+i);
		nw1.className='testo_miniature_right';
		if (el>1) {
			var j=i;
			while (j==i) {j=Math.floor(Math.random() * el) + 1}
			var nw2=document.getElementById('NW_'+j);
			nw2.className='testo_miniature_right';
		}
	}
}

function random2() {
	var k=1;
	var esiste='true';
	while (document.getElementById('NW_'+k)){
		var nw0=document.getElementById('NW_'+k);
		nw0.className='invisibile';
		k=k+1;
	}
	var el=k-1;
	if (el>0) {
		var i=Math.floor(Math.random() * el) + 1;
		var nw1=document.getElementById('NW_'+i);
		nw1.className='testo_miniature_right';

	}

	var y=1;
	while (document.getElementById('NWnew_'+y)){
		var nw0=document.getElementById('NWnew_'+y);
		nw0.className='invisibile';
		y=y+1;
	}
	var el2=y-1;
	if (el2>0) {
		var j=Math.floor(Math.random() * el2) + 1;
		var nwn1=document.getElementById('NWnew_'+j);
		nwn1.className='testo_miniature_right';

	}


}




function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title || a.getAttribute("title") == "print" ) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

window.onload = function(e) {
  var cookie = readCookie("style_scuolaeservizi");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style_scuolaeservizi", title, 365);
}

var cookie = readCookie("style_scuolaeservizi");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);