//variables used by date verification
var dtCh= "/";
var minYear=1900;
var maxYear=2100;


//message box telling french is not available yet
function nofrench()
{
  //alert("Langue francaise : pas disponible pour le moment");
  //return(false);
}

//<-- begin date verification routines
// usage: onSubmit="return ValidateForm(formname,date)">
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 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,lang){
	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)
	}

        if (lang=="e" || lang=="f" || lang=="g" || lang=="s"){
          var strformat="The date format should be : dd/mm/yyyy"
          var strmonth="Please enter a valid month"
          var strday="Please enter a valid day"
          var stryear="Please enter a valid 4 digit year between "+minYear+" and "+maxYear
          var strdate="Please enter a valid date"
        }
        if (lang=="i"){
          var strformat="Il formato della data deve essere : gg/mm/aaaa"
          var strmonth="La cifra del mese non e' valida"
          var strday="La cifra del giorno non e' valida"
          var stryear="L'anno deve essere di quattro cifre, compreso tra "+minYear+" e "+maxYear
          var strdate="La data inserita non e' valida"
        }

	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
                alert(strformat)
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
                alert(strmonth)
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
                alert(strday)
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
                alert(stryear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
                alert(strdate)
		return false
	}
return true
}

function ValidateForm(date,lang){
        var d=date.value

        if (d==""){
                return true
        }
        if (isDate(d,lang.value)==false){

                date.focus()
                date.select()
                date.value=""
		return false
        }
 }

//--end date verification routines-->

function popup(url){
navDOM = window.innerHeight; // navigator handles it a little differently
if (navDOM) {
    h=window.innerHeight;
    w=window.innerWidth;
  } else {
    w = document.body.clientWidth;
    h = document.body.clientHeight;
  }
  h=h-h/4;
  w=w-w/4;
  s="toolbar=yes,location=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes,width="+w+",height="+h;
  open(url,"NewWindow",s)
}

function confirmLink(theLink, theTrigger, theLang)
{

        if (theLang=="e" || theLang=="f" || theLang=="g" || theLang=="s"){
          msg="ALERT - Are you sure you want to delete this record?";
        } else
        if (theLang=="i") {
          msg="ATTENZIONE - Vuoi davvero eliminare questo record?";
        }

    var is_confirmed = confirm(msg);
    if (is_confirmed) {
        theLink.href += theTrigger;
    }

    return is_confirmed;
}