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 DaysInMonth(WhichMonth, WhichYear)
{
  var DaysInMonth = 31;
  if (WhichMonth == "Apr" || WhichMonth == "Giu" || WhichMonth == "Set" || WhichMonth == "Nov") DaysInMonth = 30;
  if (WhichMonth == "Feb")  {
  	if ((WhichYear % 4 == 0 && WhichYear % 100 != 0) || WhichYear % 400 == 0 || WhichYear == 0) 
  		DaysInMonth = 29;
  	else
  		DaysInMonth = 28;
  }
  return DaysInMonth;
}

function ChangeOptionDays(Which)
{
  DaysObject = eval("document.Form1." + Which + "Day");
  MonthObject = eval("document.Form1." + Which + "Month");
  YearObject = eval("document.Form1." + Which + "Year");

  Month = MonthObject[MonthObject.selectedIndex].text;
  Year = YearObject[YearObject.selectedIndex].text;

  DaysForThisSelection = DaysInMonth(Month, Year);
  CurrentDaysInSelection = DaysObject.length;
  if (CurrentDaysInSelection > DaysForThisSelection)
  {
    for (i=0; i<(CurrentDaysInSelection-DaysForThisSelection); i++)
    {
      DaysObject.options[DaysObject.options.length - 1] = null
    }
  }
  if (DaysForThisSelection > CurrentDaysInSelection)
  {
    for (i=0; i<(DaysForThisSelection-CurrentDaysInSelection); i++)
    {
      NewOption = new Option(DaysObject.options.length + 1);
      DaysObject.add(NewOption);
    }
  }
    if (DaysObject.selectedIndex < 0) DaysObject.selectedIndex == 0;
}

<!--
function valid(form) {

anno=form.FirstSelectYear.value;
mese=form.FirstSelectMonth.value;
giorno=form.FirstSelectDay.value;
if (eval(anno)<10) anno="0"+eval(anno);
if (eval(mese)<10) mese="0"+eval(mese);
if (eval(giorno)<10) giorno="0"+eval(giorno);
a=eval(anno+mese+giorno);


anno=form.SecondSelectYear.value;
mese=form.SecondSelectMonth.value;
giorno=form.SecondSelectDay.value;
if (eval(anno)<10) anno="0"+eval(anno);
if (eval(mese)<10) mese="0"+eval(mese);
if (eval(giorno)<10) giorno="0"+eval(giorno);
b=eval(anno+mese+giorno);

//cerca ora corrente

if (a>=b){ 
	alert("La data di check-out deve essere successiva a quella di check-in");
	return false;
}
}
// -->
function ShowHide(id){
if(document.getElementById){
    var el=document.getElementById(id);
    el.style.display = (el.style.display=="block") ? "none" : "block";
    }
}

function ShowHideIMG(id){
if(document.getElementById){
    var el=document.getElementById(id);
	if (el.src.substring(el.src.length-9)=='letto.gif') el.src='http://localhost/ghassisi/img/add-letto-togli.gif'; else el.src='http://localhost/ghassisi/img/add-letto.gif';
	}
}
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function introduzione() {
      document.write("<object type='application/x-shockwave-flash' data='intro.swf' width='550' height='400' id='filmato1'> ");
      document.write("<param name='movie' value='intro.swf' /> ");
      document.write("<param name='quality' value='high' /><param name='wmode' value='transparent' /> ");
      document.write("</object> ");
}
function homepageita(ghopen) {
      document.write("<object type='application/x-shockwave-flash' data='homepage.swf' width='100%' height='690' id='filmatohome'> ");
      document.write("<param name='movie' value='homepage.swf' /> ");
      document.write("<param name='FlashVars' value='ghopen="+ghopen+"'> ");
      document.write("<p>Flash Player non trovato: lo puoi scaricare <a href='http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0'>qui</a>.</p>");
      document.write("</object> ");
}
function homepageeng(ghopen) {
      document.write("<object type='application/x-shockwave-flash' data='homepage-en.swf' width='100%' height='690' id='filmatohome'> ");
      document.write("<param name='movie' value='homepage-en.swf' /> ");
      document.write("<param name='FlashVars' value='ghopen="+ghopen+"'> ");
      document.write("<p>Flash Player non trovato: lo puoi scaricare <a href='http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0'>qui</a>.</p>");
      document.write("</object> ");
}
function engflag() {
      document.write("<object type='application/x-shockwave-flash' data='engflag.swf' width='134' height='27' id='filmatoflag'> ");
      document.write("<param name='movie' value='engflag.swf' /> ");
      document.write("<param name='quality' value='high' /><param name='wmode' value='transparent' /> ");
      document.write("</object> ");
}
function itaflag() {
      document.write("<object type='application/x-shockwave-flash' data='itaflag.swf' width='134' height='27' id='filmatoflag'> ");
      document.write("<param name='movie' value='itaflag.swf' /> ");
      document.write("<param name='quality' value='high' /><param name='wmode' value='transparent' /> ");
      document.write("</object> ");
}
function headerita() {
      document.write("<object type='application/x-shockwave-flash' data='header.swf' width='100%' height='209' id='filmato4'> ");
      document.write("<param name='movie' value='header.swf' /> ");
      document.write("<param name='quality' value='high' /><param name='wmode' value='transparent' /> ");
      document.write("</object> ");
}

function headereng() {
      document.write("<object type='application/x-shockwave-flash' data='header-en.swf' width='100%' height='209' id='filmato4'> ");
      document.write("<param name='movie' value='header-en.swf' /> ");
      document.write("<param name='quality' value='high' /><param name='wmode' value='transparent' /> ");
      document.write("</object> ");
}

function YY_checkform() { //v4.71
//copyright (c)1998,2002 Yaromat.com
  var a=YY_checkform.arguments,oo=true,v='',s='',err=false,r,o,at,o1,t,i,j,ma,rx,cd,cm,cy,dte,at;
  for (i=1; i<a.length;i=i+4){
	if (a[i+1].charAt(0)=='#'){r=true; a[i+1]=a[i+1].substring(1);}else{r=false}
    o=MM_findObj(a[i].replace(/\[\d+\]/ig,""));
    o1=MM_findObj(a[i+1].replace(/\[\d+\]/ig,""));
    v=o.value;t=a[i+2];
    if (o.type=='text'||o.type=='password'||o.type=='hidden'){
      if (r&&v.length==0){err=true}
      if (v.length>0)
      if (t==1){ //fromto
        ma=a[i+1].split('_');if(isNaN(v)||v<ma[0]/1||v > ma[1]/1){err=true}
      } else if (t==2){
        rx=new RegExp("^[\\w\.=-]+@[\\w\\.-]+\\.[a-zA-Z]{2,4}$");if(!rx.test(v))err=true;
      } else if (t==3){ // date
        ma=a[i+1].split("#");at=v.match(ma[0]);
        if(at){
          cd=(at[ma[1]])?at[ma[1]]:1;cm=at[ma[2]]-1;cy=at[ma[3]];
          dte=new Date(cy,cm,cd);
          if(dte.getFullYear()!=cy||dte.getDate()!=cd||dte.getMonth()!=cm){err=true};
        }else{err=true}
      } else if (t==4){ // time
        ma=a[i+1].split("#");at=v.match(ma[0]);if(!at){err=true}
      } else if (t==5){ // check this 2
            if(o1.length)o1=o1[a[i+1].replace(/(.*\[)|(\].*)/ig,"")];
            if(!o1.checked){err=true}
      } else if (t==6){ // the same
            if(v!=MM_findObj(a[i+1]).value){err=true}
      }
    } else
    if (!o.type&&o.length>0&&o[0].type=='radio'){
          at = a[i].match(/(.*)\[(\d+)\].*/i);
          o2=(o.length>1)?o[at[2]]:o;
      if (t==1&&o2&&o2.checked&&o1&&o1.value.length/1==0){err=true}
      if (t==2){
        oo=false;
        for(j=0;j<o.length;j++){oo=oo||o[j].checked}
        if(!oo){s+='- '+a[i+3]+'\n'}
      }
    } else if (o.type=='checkbox'){
      if((t==1&&o.checked==false)||(t==2&&o.checked&&o1&&o1.value.length/1==0)){err=true}
    } else if (o.type=='select-one'||o.type=='select-multiple'){
      if(t==1&&o.selectedIndex/1==0){err=true}
    }else if (o.type=='textarea'){
      if(v.length<a[i+1]){err=true}
    }
    if (err){s+='- '+a[i+3]+'\n'; err=false}
  }
if (s!=''){alert('Attenzione!\n'+s)}
document.MM_returnValue = (s=='');
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}


function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}