// JScript File
function notnull(str,msg)
{
var s1=str.value.length;
if(s1==0)
{
alert(msg)
str.focus();
return false;
}
else
{
checkEmail(str);
}
}

function checkEmail(myForm) {
var str=myForm.value.length;
if(str!=0)
{
if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(myForm.value)){
return (true)
}
else
{
alert("Invalid E-mail Address! Please re-enter.")
myForm.focus();
return false;
}}
}


 function validateInt(Mobile,msg)
   {
      var o = Mobile.value;
      if(o.length!=0)
      {
     if(isNaN(o))
      {       
            alert(msg)
            Mobile.focus();
            return false;
            }
            
          else if(o.length<10)
          {
          alert("Mobile should be 10 characters long!");
          Mobile.focus();
          return false;
          } 
          else
            {         
            return true;
            }
      }
      
   }
function compare(pwd,conpwd)
{
var a=pwd.value;
var b=conpwd.value;
if(a!=b)
{
alert("Password does not match")
str.focus();
return false;
}
else
{
return true;
}
}
function pwdlen(pwd)
{
var a=pwd.value.length;
if(a!=0)
{
if(a<4)
{
alert("Password can not be less than 4 characters");
pwd.focus();
return false;
}
else
{
return true;
}
}
}
function phone(phone,msg)
   {
      var o = phone.value;
      if(o.length!=0)
      {
     if(isNaN(o))
      {       
            alert(msg)
            phone.focus();
            return false;
            }
            else
            {         
            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 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){
// for test
	
	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("The date format should be : dd/mm/yyyy");
		return false;
	}
	
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month");
		return false;
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day");
		return false;
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear);
		return false;
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date");
		return false;
	}
	
	
return true;
}

function ValidateForm(date)
{
	var dt=date;
        if (isDate(dt.value)==false)
        {
	        dt.focus();
	        return false;
    		
        }
    return true;
 }