<!--
// Last update (2006.12.28)
// Check for required info
// Validate e-mail address
function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   //alert("Blogai įvestas el. pašto adresas!")
		   return false
		}

		if (str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   //alert("Blogai įvestas el. pašto adresas!")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    //alert("Blogai įvestas el. pašto adresas!")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    //alert("Blogai įvestas el. pašto adresas!")
		    return false
		 }
			
		 if (str.indexOf(" ")!=-1){
		    alert("Blogai įvestas el. pašto adresas!")
		    return false
		 }

 		 return true					
	}
//** **************************************************************************************************
// Declaring valid date character, minimum year and maximum year
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 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){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strYear=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strDay=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("Prašome, datai naudoti tik nurodytą formatą: YYYY.MM.DD")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Prašome, įvesti teisingus metus (Tarp "+minYear+" ir "+maxYear+")")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Prašome, įvesti teisingą mėnesį")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Prašome, įvesti teisingą dieną")
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Prašome, įvesti teisingą datą")
		return false
	}
return true
}

function ValidateDate(obj){
	if (isDate(obj.value)==false){
		obj.focus()
		return false
	}
    return true
 }

// Validate input box for a-z and A-Z
function validate(inobj,pattern) {
   template = new RegExp( pattern )
   if (! template.test(inobj.value))
      {
      return true;
      }
   else
      {
      // Failed
      inobj.focus()
      return false;
      }
 }

// Confirm delete action
function confirmDeleteAction(alert_msg) {
   var agree=confirm(alert_msg);
   if (agree) {return true;}
return false ;
}
// Validate and focus input box 
function checkEmptyField(name, alert_msg) {
   if (document.getElementById(name).value == "") {document.getElementById(name).focus(); alert(alert_msg); return false;}
return true;
}
function checkTextField(name, alert_msg) {
   if (! validate(document.getElementById(name),"^[^A-Za-z ĄČĘĖĮŠŲŪŽąčęėįšųūž]+|[^A-Za-z ĄČĘĖĮŠŲŪŽąčęėįšųūž]+|[^A-Za-z ĄČĘĖĮŠŲŪŽąčęėįšųūž]+$")) {document.getElementById(name).focus(); alert(alert_msg); return false;}
return true;
}
function checkVarNameField(name, alert_msg) {
   if (! validate(document.getElementById(name),"^[^A-Za-z0-9_]+|[^A-Za-z0-9_]+|[^A-Za-z0-9_]+$")) {document.getElementById(name).focus(); alert(alert_msg); return false;}
return true;
}
function checkNumberField(name, alert_msg) {
   if ((! validate(document.getElementById(name),"^[^0-9+]+|[^0-9+]+|[^0-9+]+$"))||(document.getElementById(name).value=="")) {document.getElementById(name).focus(); alert(alert_msg); return false;}
return true;
}
function checkEmailField(name, alert_msg) {
   if (!echeck(document.getElementById(name).value)) {document.getElementById(name).focus(); alert(alert_msg); return false;}
return true;
}
function checkRepeatEmailField(name, repeatname, alert_msg) {
   if (document.getElementById(name).value!=document.getElementById(repeatname).value) {document.getElementById(name).focus(); alert(alert_msg); return false;}
return true;
}

