function LTrim( value ) {	
	var re = /\s*((\S+\s*)*)/;
	return value.replace(re, "$1");	
}

function RTrim( value ) {	
	var re = /((\s*\S+)*)\s*/;
	return value.replace(re, "$1");	
}

function trim( value ) {	
	return LTrim(RTrim(value));	
}

function checkValidEmail(stringa) {
	 //--------------------------------
	 if (stringa != "") {
	  if (stringa.indexOf(" ", 0) == -1) {
	   //--------------------------------
	   if (stringa.indexOf("@", 1) != -1) {
		startpoint = stringa.split("@");
		//--------------------------------
		if (startpoint.length>0 && startpoint[1].indexOf(".", 1) != -1) {
		 startpoint2 = startpoint[1].split(".");
		 //--------------------------------
		 if (startpoint2[1].length>1) {
		  return true;
		 }
		}
	   }
	  }
	 }
	}

var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function isFloat(s) {
	var n = trim(s);
	return n.length>0 && +n == n;
}

function controlla_decimale(campo) {	
	number=campo.value;
	if (isFloat(number.replace(",", "."))) {
		
	} else {	
		campo.value="0";
		nomecampo=campo.name;
		setTimeout('document.form1[nomecampo].focus()', 100);
		alert("Devi inserire un valore numerico!");		
	}
}

function controlla_intero(campo) {	
	number=campo.value;
	if (isInteger(number)) {
		
	} else {
		campo.value="0";
		alert("Devi inserire un valore numerico!");
	}
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}

function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){
	if (dtStr!='') { 
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strDay=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("La data deve essere nel formato : gg/mm/aaaa")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Inserisci un mese valido")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Inserisci un giorno valido")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("L'anno deve essere compreso tra "+minYear+" e "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("La data inserita non è valida")
		return false
	}
	}
return true
}

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 vai(url) {
	document.form_go.action=url;
	document.form_go.submit();
}

function espandi(quale) {
	
	var divs = document.getElementsByTagName('div'); 
	
	for(i=0;i<divs.length;i++){ 
		nome=divs[i].id;		
		if (nome.indexOf('faq_')>=0) {
			document.getElementById(nome).style.display='none';
		}
	}
	
	elem = document.getElementById("faq_"+quale);
	elem.style.display='block';
	//elem = document.getElementById("faq_"+quale);
	//elem.style.display=elem.style.display=='none'?'block':'none'
}