function CheckLength(txta,chrs,maxchars)
{
	var chars=txta.value
	if (chars.length >= maxchars)
  {
  	txta.value=chars.substr(0,maxchars);
  	chrs.innerHTML = "non puoi scrivere più caratteri nel titolo della recensione";
  	//txta.blur();
  }
  else
		chrs.innerHTML="rimangono "+(maxchars-txta.value.length)+" caratteri al limite";
}

function CheckLengthMin(txta,chrs,maxchars)
{
	var chars=txta.value
	if (chars.length < maxchars)
  {
  	txta.focus();
  }
  if (chars.length < maxchars)
		chrs.innerHTML = "rimangono "+(maxchars-txta.value.length)+" caratteri per potere pubblicare";
	else
		chrs.innerHTML = "la tua descrizione &egrave; pubblicabile";
}

function omini(da, a, tipo, todo)
{
	var objTot = getObj(tipo+'_tot');

	if (todo == "on")
		objTot.innerHTML=a+".00";
 	else
 		objTot.innerHTML="0.00";
	for(j=da;j<=a;j++)
	{
		//alert('omino_'+j+'_'+id_dispo);
		var obj = getObj('omino_'+j+'_'+tipo);
		obj.src='img/punto_big_'+todo+'.gif';
	}

}

function check(myForm)
{
 email  = myForm.email.value;
 first_name  = myForm.first_name.value;
 last_name = myForm.last_name.value;

 var ret = true;

 re = /^([^\@]+){1}\@([^\@]+){1}$/;
 found = email.match(re);
 if (!found)
 {
  //alert("\nIndirizzo E-Mail non corretto.");
  myForm.email.focus();
  getObj('email_ko').style.display='';
  ret = false;
 }
 else
 {
  getObj('email_ko').style.display='none';
 }

 // fail if first_name blank
 if ( first_name.length == "" ) {
    //alert("\nNon è stato inserito il first_name.");
    myForm.first_name.focus();
    getObj('first_name_ko').style.display='';
    ret = false;
 }
 else
 {
  getObj('first_name_ko').style.display='none';
 }

 // fail if last_name blank
 if ( last_name.length == "" ) {
    //alert("\nNon è stato inserito il last_name.");
    myForm.last_name.focus();
    getObj('last_name_ko').style.display='';
    ret = false;
 }
 else
 {
  getObj('last_name_ko').style.display='none';
 }

 return ret;
}

function OpenClose() {
	var dialog = document.getElementById("dialog");
	// Per nascondere le barre di scorrimento quando appare il dialog box
	var html = document.getElementsByTagName("html");
	if(dialog.style.display=="none") {
		html[0].style.overflow="hidden";
		dialog.style.display="block";
	} else {
		html[0].style.overflow="auto";
		dialog.style.display="none";
	}
	return false;
}

function show(d){
	var myDiv = getObj(d);
	myDiv.style.display = "";
}
function hide(d){
	var myDiv = getObj(d);
	myDiv.style.display = "none";
}


function showWait(d){
	var myDiv = document.getElementById(d);
	myDiv.innerHTML = "<div align=\"center\"><img src=\"img/loading.gif\"></div>";
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

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 showHelp(str) {
		var myDiv = getObj("help");

		html = '<table width="100%" align="center" border="0" cellspacing="0" cellpadding="0"><tr><td class="help_text" align="right"><a href="#" title="Chiudi finestra di dialogo" onclick="OpenClose()">chiudi</a></td></tr><tr><td class="help_text">'+str+'</td></tr></table>';

    myDiv.innerHTML = html;
    myDiv.style.display = '';
}
function OpenClose() {
	var dialog = document.getElementById("help");
	if(dialog.style.display=="none") {
		dialog.style.display="block";
		dialog.style.top= document.documentElement.scrollTop+"px";
	} else {
		dialog.style.display="none";
	}
	return false;
}

function getObj(id) {
    var retval;
    if (typeof document.getElementById != 'undefined') {
        retval = document.getElementById(id);
    } else if (typeof document.all != 'undefined') {
        retval = document.all[id];
    } else {
        retval = false;
    }
    return retval;
}

function disableForm(theform, btn) {
	if (document.all || document.getElementById) {
		for (i = 0; i < theform.length; i++) {
		var formElement = theform.elements[i];
			if (true) {
				formElement.disabled = true;
			}
		}
	}
	btn.disabled = false;
}

function enableForm(theform, btn) {
	if (document.all || document.getElementById) {
		for (i = 0; i < theform.length; i++) {
		var formElement = theform.elements[i];
			if (true && theform.elements[i]!=btn) {
				formElement.disabled = false;
			}
		}
	}
	btn.disabled = true;
}

function enableAll(formname,fldname,thestate)
{
	//var el_collection=eval("document.forms."+formname+"."+fldname);
	var el_collection=eval("document.forms['"+formname+"'].elements['"+fldname+"']");
	for (c=0;c<el_collection.length;c++)
		el_collection[c].disabled=thestate;
	return true;
}