window.history.forward(1);
        
        document.onmousedown="if (event.button==2) return false"; 
        document.oncontextmenu=new Function("return false"); 
            
        if (document.all)
        { 
            document.onkeydown = function ()
            { 
                var key_f5 = 116; // 116 = F5 
                var key_backspace = 8; //

                if (key_f5==event.keyCode)
                { 
                    event.keyCode = 27; 
                    return false; 
                } 
                else if (key_backspace==event.keyCode)
                { 
                    event.keyCode = 27; 
                    return false; 
                } 
            } 
        } 


// Regular Expression Variables

var String_AlphaSpace = /^([abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ]+( )?)+$/;
var String_AlphaSpace_N = /^([abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ]+( )?)+$|^$/;
var String_AlphaNumeric = /^([abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_])+$/;
var String_AlphaNumericSpaceSpecialCharecters = /^([abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.()+-_,%@&]+( )?)+$/;
var String_AlphaNumericSpaceSpecialCharecters_N = /^([abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.()+-_,%@&]+( )?)+$|^$/;
var String_Alpha = /^[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ]+$/;
var String_Alpha_N = /^[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ]+$|^$/;
var String_AlphaNumeric1 = /^[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]+$/;
var String_AlphaNumeric1_N = /^[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]+$|^$/;
var Number = /^[0123456789]+$/;
var Number_N = /^[0123456789]+$|^$/;
var PinCode = /^(\d{6})$/;
var PinCode_N = /^(\d{6})$|^$/;
var PhoneNumber = /^\d{8,}$/;
var PhoneNumber_N = /^\d{8,}$|^$/;
var Email_N = /\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$|^$/;
var Code_Employee = /^(IP)(\d{2})(\-)(\d{5})$/;
var Code_AccounHead = /^([abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]+\-)+([abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789])+$/;
var Code_SingleAlpha = /^[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ]$/;
var Code_CapitalAlphaAndNumber = /^[ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]+$/;
var Code_Date = /^(\d{2})(\/)(\d{2})(\/)(\d{4})$/;
var Bit =/^[01]$/;



function SelectRegularExpression(type)
{
    if(type == "String_AlphaSpace")
    {
        return String_AlphaSpace;
    }
    
    else if(type == "String_AlphaSpace_N")
    {
        return String_AlphaSpace_N;
    }
    
    else if(type == "String_AlphaNumeric")
    {
        return String_AlphaNumeric;
    }
        
    else if(type == "String_AlphaNumericSpaceSpecialCharecters")
    {
        return String_AlphaNumericSpaceSpecialCharecters;
    }
    
    else if(type == "String_AlphaNumericSpaceSpecialCharecters_N")
    {
       return String_AlphaNumericSpaceSpecialCharecters_N; 
    }
    
    else if(type == "String_Alpha")
    {
        return String_Alpha;
    }
    
    else if(type == "String_Alpha_N")
    {
        return String_Alpha_N;
    }
    
    else if(type == "String_AlphaNumeric1")
    {
        return String_AlphaNumeric1;
    }
    
    else if(type == "String_AlphaNumeric1_N")
    {
        return String_AlphaNumeric1_N;
    }
    
    else if(type == "Number")
    {
        return Number;
    }
    else if(type == "Number_N")
    {
        return Number_N;
    }
    
    else if(type == "PinCode")
    {
        return PinCode;
    }
    
    else if(type == "PinCode_N")
    {
        return PinCode_N;
    }
    
    else if(type == "PhoneNumber")
    {
        return PhoneNumber;
    }
    
    else if(type == "PhoneNumber_N")
    {
        return PhoneNumber_N;
    }
            
    else if(type == "Email_N")
    {
        return Email_N;
    }
    
    else if(type == "Code_Employee")
    {
        return Code_Employee;
    }
    
    else if(type == "Code_AccounHead")
    {
        return Code_AccounHead;
    }
    
    else if(type == "Code_SingleAlpha")
    {
        return Code_SingleAlpha;
    }
    
    else if(type == "Code_CapitalAlphaAndNumber")
    {
        return Code_CapitalAlphaAndNumber;
    }
    
    else if(type == "Date")
    {
        return Code_Date;
    }
    
    else if(type == "Bit")
    {
        return Bit;
    }
          
}

//Javascript file
function ValidateTextBox(str,messagenull,message,type)
{
    type = SelectRegularExpression(type);
    if(messagenull == "" && document.getElementById(str).value=="")
    {
        return true;
    }
    else if(messagenull == "" && document.getElementById(str).value!="")
    {
        if (type.test(document.getElementById(str).value) == true)
        {
          return true;        
        }           
        else
        {
            alert(message);
            document.getElementById(str).select();
            return false;
        }    
    }
    else if((messagenull) != "" && (document.getElementById(str).value)=="")
    {
        alert(messagenull);
        document.getElementById(str).select();
        return false;
    }
    else if((messagenull) != "" && (document.getElementById(str).value)!="")
    {
        if (type.test(document.getElementById(str).value) == true)
        {
            return true;        
        }           
        else
        {
            alert(message);
            document.getElementById(str).select();
            return false;  
        } 
    }
}

//Validate Drop Down
function ValidateDropdown(str,message)
{
    if(document.getElementById(str).selectedIndex<=0)
    {
        alert(message);
        document.getElementById(str).focus();
        return false;
    }
    return true;
}

function ValidateRadioButton(str,message,count)
{
    var i=0;
    for (i=0;i<count;i++)
    {
        if(document.getElementById(str+'_'+i).checked)
        {
            return true;
        }
    }
    alert(message);
    
    document.getElementById(str+'_'+0).focus();
    return false;
}

function ValidateBirthDate(strServerDate,strBirthDate,message)
{
   var serverDate=new Date(document.getElementById(strServerDate).value);
   var birthDate=new Date(document.getElementById(strBirthDate).value);
   var dateDiff=((serverDate - birthDate)/86400000);
   if(dateDiff<6574)
   {
     alert(message);
     document.getElementById(strBirthDate+'_Day_ID').focus();
     return false;
   }
   return true;

}

function ValidateJoiningDate(strJoiningDate,strBirthDate,strServerDate,message)
{
   var joiningDate=new Date(document.getElementById(strJoiningDate).value);
   var birthDate=new Date(document.getElementById(strBirthDate).value);
   var serverDate=new Date(document.getElementById(strServerDate).value);
   var dateDiff=((joiningDate - birthDate)/86400000);
   if((dateDiff<6574) || (joiningDate>serverDate))
    {
       alert(message);
       document.getElementById(strJoiningDate+'_Day_ID').focus();
       return false;
    }
   
      return true;
}

function ValidateCurrentOfficeDate(strCurrentOfficeDate,strJoiningDate,strServerDate,message)
{
   var currentOfficeDate=new Date(document.getElementById(strCurrentOfficeDate).value);
   var joiningDate=new Date(document.getElementById(strJoiningDate).value);
   var serverDate=new Date(document.getElementById(strServerDate).value);
   if((currentOfficeDate < joiningDate) || (currentOfficeDate > serverDate))
   {
    alert(message);
    document.getElementById(strCurrentOfficeDate+'_Day_ID').focus();
    return false;
   }
    return true;
    
}

function ValidateIncrementDate(strIncrementDate,strCurrentOfficeDate,strServerDate,message)
{
   var incrementDate=new Date(document.getElementById(strIncrementDate).value);
   var currentOfficeDate=new Date(document.getElementById(strCurrentOfficeDate).value);
   var serverDate=new Date(document.getElementById(strServerDate).value);
   //Updated start
   var dd=parseInt(currentOfficeDate.getDate());
   dd--;
   currentOfficeDate.setDate(currentOfficeDate.getDate()- dd);
   // Updated end
   
   var dateDiff=((incrementDate - currentOfficeDate)/86400000);
     
   if((dateDiff<365) || (incrementDate < serverDate))
   {
    alert(message);
    document.getElementById(strIncrementDate+'_Day_ID').focus();
    return false;
   }
    return true;
    
    
}

function ValidateFromDate(strFromDate,strJoiningDate,strServerDate,message)
{
   var fromDate=new Date(document.getElementById(strFromDate).value);
   var joiningDate=new Date(document.getElementById(strJoiningDate).value);
   var serverDate=new Date(document.getElementById(strServerDate).value);
   if((fromDate > serverDate) || (fromDate < joiningDate))
   {
    alert(message);
    document.getElementById(strFromDate+'_Day_ID').focus();
    return false;
   }
    return true;
}


 //Validation of From Date (should be > MAXPrevToDate or <= Todays Date)
function ValidateFromDateWithPrevToDate(strFromDate,strPrevToDate,strServerDate,message)
{
    
   var fromDate=new Date(document.getElementById(strFromDate).value);
   var prevToDate=new Date(document.getElementById(strPrevToDate).value);
   var serverDate=new Date(document.getElementById(strServerDate).value);
    
   if ((fromDate > serverDate) || (fromDate <= prevToDate))
   {
      alert(message + ' and MAXPrevToDate is ' + document.getElementById(strPrevToDate).value + ' (yyyy/mm/dd) ');
      document.getElementById(strFromDate+'_Day_ID').focus();
      return false;
   }
   
      return true;
   

}


function ValidateSuspentionFromDate(strFromDate,strServerDate,message)
{
  
   var fromDate=new Date(document.getElementById(strFromDate).value);
   var serverDate=new Date(document.getElementById(strServerDate).value);
   if(fromDate > serverDate)
   {
    alert(message);
    document.getElementById(strFromDate+'_Day_ID').focus();
    return false;
   }
    return true;
}

function ValidateSuspentionToDate(strFromDate,strToDate,message)
{
   var fromDate=new Date(document.getElementById(strFromDate).value);
  
   var toDate=new Date(document.getElementById(strToDate).value);
   if((toDate < fromDate))
   {
    alert(message);
    document.getElementById(strToDate+'_Day_ID').focus();
    return false;
   }
    return true;
}


//Val Cd
    function ChkEmptyStr(strType)
    {
        
            var dis=strType.txtPassword.value;
            strType.esalary.value=ConvertToCode(dis,1);
        
    }
    
    function ChkEmptyString(src,dst)
    {
            //alert("Start"+src.value);
            var dis=src.value;//document.getElementById(src).value;
            //alert(dis + "  "+ConvertToCode(dis,1));
            //document.getElementById(dst).value
            dst.value=ConvertToCode(dis,1);
            //alert(dis);
    }
    
    function ConvertToCode(strValue,option)
    {
        
        //Hidden Field Insertion
        if(option==1)
        {
            temp=strValue.length;
            var pwdstr="";
            for(i=0;i<temp;i++)
            {
                abc=strValue.charCodeAt(i)-5;
                pwdstr=pwdstr + String.fromCharCode(abc);
            }
         }
         //Paswword Field Conversion
         else
         {
            temp=strValue.length;
            var pwdstr=0;
                for(i=0;i<temp;i++)
            {
                abc=strValue.charCodeAt(i);
                //document.getElementById('lblSuccess').innerHTML=abc;
                pwdstr=pwdstr + abc;
            }
         }
         return pwdstr;
    }
    
    function SentToServer(strType)
    {
        var dis=strType.txtPassword.value;//(strType.txtPassword.value).substring((strType.txtPassword.value).length-1);
        var mykript=ConvertToCode(dis,2);
        var slt_no=Math.floor(Math.random()*10)+1;
        strType.hdnSlt.value=slt_no;
        var pwd=parseInt(mykript)+parseInt(slt_no);
        strType.txtPassword.value=hex_md5(String(pwd));//ConvertToCode(dis,1);
        //alert(strType.txtPassword.value);
       // strType.txtPassword.value=ConvertToCode(strType.txtPassword.value,2);//+"munish";
    }
    
    function ConvertPass(strValue)
    {
        
    }
    
    
    
    
    
    
    
    
    
    
    
    //include(MD5.js) ------------------------
  /*
 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
 * Digest Algorithm, as defined in RFC 1321.
 * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for more info.
 */

/*
 * Configurable variables. You may need to tweak these to be compatible with
 * the server-side, but the defaults work in most cases.
 */
var hexcase = 0;  /* hex output format. 0 - lowercase; 1 - uppercase        */
var b64pad  = ""; /* base-64 pad character. "=" for strict RFC compliance   */
var chrsz   = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode      */

/*
 * These are the functions you'll usually want to call
 * They take string arguments and return either hex or base-64 encoded strings
 */
function hex_md5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));}
function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));}
function str_md5(s){ return binl2str(core_md5(str2binl(s), s.length * chrsz));}
function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); }
function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); }
function str_hmac_md5(key, data) { return binl2str(core_hmac_md5(key, data)); }

/*
 * Perform a simple self-test to see if the VM is working
 */
function md5_vm_test()
{
  return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";
}

/*
 * Calculate the MD5 of an array of little-endian words, and a bit length
 */
function core_md5(x, len)
{
  /* append padding */
  x[len >> 5] |= 0x80 << ((len) % 32);
  x[(((len + 64) >>> 9) << 4) + 14] = len;

  var a =  1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d =  271733878;

  for(var i = 0; i < x.length; i += 16)
  {
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;

    a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
    d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
    c = md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);
    b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
    a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
    d = md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);
    c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
    b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
    a = md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);
    d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
    c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
    b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
    a = md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);
    d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
    c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
    b = md5_ff(b, c, d, a, x[i+15], 22,  1236535329);

    a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
    d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
    c = md5_gg(c, d, a, b, x[i+11], 14,  643717713);
    b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
    a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
    d = md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);
    c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
    b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
    a = md5_gg(a, b, c, d, x[i+ 9], 5 ,  568446438);
    d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
    c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
    b = md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);
    a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
    d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
    c = md5_gg(c, d, a, b, x[i+ 7], 14,  1735328473);
    b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);

    a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
    d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
    c = md5_hh(c, d, a, b, x[i+11], 16,  1839030562);
    b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
    a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
    d = md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);
    c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
    b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
    a = md5_hh(a, b, c, d, x[i+13], 4 ,  681279174);
    d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
    c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
    b = md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);
    a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
    d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
    c = md5_hh(c, d, a, b, x[i+15], 16,  530742520);
    b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);

    a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
    d = md5_ii(d, a, b, c, x[i+ 7], 10,  1126891415);
    c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
    b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
    a = md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);
    d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
    c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
    b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
    a = md5_ii(a, b, c, d, x[i+ 8], 6 ,  1873313359);
    d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
    c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
    b = md5_ii(b, c, d, a, x[i+13], 21,  1309151649);
    a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
    d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
    c = md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);
    b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);

    a = safe_add(a, olda);
    b = safe_add(b, oldb);
    c = safe_add(c, oldc);
    d = safe_add(d, oldd);
  }
  return Array(a, b, c, d);

}

/*
 * These functions implement the four basic operations the algorithm uses.
 */
function md5_cmn(q, a, b, x, s, t)
{
  return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
}
function md5_ff(a, b, c, d, x, s, t)
{
  return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
}
function md5_gg(a, b, c, d, x, s, t)
{
  return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
}
function md5_hh(a, b, c, d, x, s, t)
{
  return md5_cmn(b ^ c ^ d, a, b, x, s, t);
}
function md5_ii(a, b, c, d, x, s, t)
{
  return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
}

/*
 * Calculate the HMAC-MD5, of a key and some data
 */
function core_hmac_md5(key, data)
{
  var bkey = str2binl(key);
  if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);

  var ipad = Array(16), opad = Array(16);
  for(var i = 0; i < 16; i++)
  {
    ipad[i] = bkey[i] ^ 0x36363636;
    opad[i] = bkey[i] ^ 0x5C5C5C5C;
  }

  var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);
  return core_md5(opad.concat(hash), 512 + 128);
}

/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
 * to work around bugs in some JS interpreters.
 */
function safe_add(x, y)
{
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xFFFF);
}

/*
 * Bitwise rotate a 32-bit number to the left.
 */
function bit_rol(num, cnt)
{
  return (num << cnt) | (num >>> (32 - cnt));
}

/*
 * Convert a string to an array of little-endian words
 * If chrsz is ASCII, characters >255 have their hi-byte silently ignored.
 */
function str2binl(str)
{
  var bin = Array();
  var mask = (1 << chrsz) - 1;
  for(var i = 0; i < str.length * chrsz; i += chrsz)
    bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);
  return bin;
}

/*
 * Convert an array of little-endian words to a string
 */
function binl2str(bin)
{
  var str = "";
  var mask = (1 << chrsz) - 1;
  for(var i = 0; i < bin.length * 32; i += chrsz)
    str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask);
  return str;
}

/*
 * Convert an array of little-endian words to a hex string.
 */
function binl2hex(binarray)
{
  var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
  var str = "";
  for(var i = 0; i < binarray.length * 4; i++)
  {
    str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +
           hex_tab.charAt((binarray[i>>2] >> ((i%4)*8  )) & 0xF);
  }
  return str;
}

/*
 * Convert an array of little-endian words to a base-64 string
 */
function binl2b64(binarray)
{
  var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  var str = "";
  for(var i = 0; i < binarray.length * 4; i += 3)
  {
    var triplet = (((binarray[i   >> 2] >> 8 * ( i   %4)) & 0xFF) << 16)
                | (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 )
                |  ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF);
    for(var j = 0; j < 4; j++)
    {
      if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;
      else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);
    }
  }
  return str;
}