function SF_Util()
{
var self = this;/////////////////////////////////////////////////////////////////////////
var c_nKeyCodeF1 = 112;var c_nKeyCodeF12 = 123;var c_nKeyCode0 = 48;var c_nKeyCode9 = 57;var c_nKeyCodeA = 65;var c_nKeyCodeZ = 90;var c_nKeyCodeTab = 9;var c_nKeyCodeEnter = 13;var c_nKeyCodeEsc = 27;var c_nKeyPageUp = 33;var c_nKeyPageDown = 34;var c_nKeyEnd = 35;var c_nKeyHome = 36;var c_nKeyLeftArrow = 37;var c_nKeyUpArrow = 38;var c_nKeyRightArrow = 39;var c_nKeyDownArrow = 40;var c_sBase64Chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";/////////////////////////////////////////////////////////////////////////
this.IsTrue = function( sVal )
{
var bRet = false;if ("boolean" == typeof( sVal ))
{
bRet = sVal;}
else if (null != sVal && sVal.length > 0)
{
var ch = sVal.toLowerCase().charAt(0);if( ch == "t" || ch == "y" || ch == "1" )
{
bRet = true;}
}
return bRet;}
this.Trim = function( sVal )
{
var sRes = "";if (sVal)
{
sRes = sVal.replace( /(^\s*)|(\s*$)/g, "" );}
return sRes;}
/////////////////////////////////////////////////////////////////////////
this.Base64Encode = function( sIn )
{
var sOut = "";var chr1, chr2, chr3, enc1, enc2, enc3, enc4;var i = 0;sIn = Base64Utf8Encode(sIn);while (i < sIn.length)
{
chr1 = sIn.charCodeAt(i++);chr2 = sIn.charCodeAt(i++);chr3 = sIn.charCodeAt(i++);enc1 = chr1 >> 2;enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);enc4 = chr3 & 63;if (isNaN(chr2))
{
enc3 = enc4 = 64;}
else if (isNaN(chr3))
{
enc4 = 64;}
sOut = sOut +
c_sBase64Chars.charAt(enc1) + c_sBase64Chars.charAt(enc2) +
c_sBase64Chars.charAt(enc3) + c_sBase64Chars.charAt(enc4);}
return sOut;}
this.Base64Decode = function(sIn)
{
var sOut = "";var chr1, chr2, chr3;var enc1, enc2, enc3, enc4;var i = 0;sIn = sIn.replace(/[^A-Za-z0-9\+\/\=]/g, "");while (i < sIn.length)
{
enc1 = c_sBase64Chars.indexOf(sIn.charAt(i++));enc2 = c_sBase64Chars.indexOf(sIn.charAt(i++));enc3 = c_sBase64Chars.indexOf(sIn.charAt(i++));enc4 = c_sBase64Chars.indexOf(sIn.charAt(i++));chr1 = (enc1 << 2) | (enc2 >> 4);chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);chr3 = ((enc3 & 3) << 6) | enc4;sOut = sOut + String.fromCharCode(chr1);if (enc3 != 64)
{
sOut = sOut + String.fromCharCode(chr2);}
if (enc4 != 64)
{
sOut = sOut + String.fromCharCode(chr3);}
}
sOut = Base64Utf8Decode(sOut);return sOut;}
/////////////////////////////////////////////////////////////////////////
this.HTMLEncode = function( s )
{
var sRes = "";if( s )
{
var bAll = true;sRes = ReplaceStr( s, " ", "&nbsp;",bAll);sRes = ReplaceStr( s, "\n", "<br>",bAll);sRes = self.XMLEncode( sRes );}
return sRes;}
this.HTMLDecode = function( s )
{
var sRes = "";if( s )
{
var bAll = true;sRes = ReplaceStr( s, "&nbsp;", " ",bAll);sRes = ReplaceStr( s, "<br>", "\n",bAll);sRes = self.XMLDecode( sRes );}
return sRes;}
this.XMLEncode = function(s)
{
var sRes = "";if( s )
{
var bAll = true;sRes = ReplaceStr(s, "&", "&amp;",bAll);sRes = ReplaceStr(sRes, "<", "&lt;",bAll);sRes = ReplaceStr(sRes, ">", "&gt;",bAll);sRes = ReplaceStr(sRes, '"', "&quot;",bAll);sRes = ReplaceStr(sRes, "'", "&apos;",bAll);}
return sRes;}
this.XMLDecode = function(s)
{
var sRes = "";if( s )
{
var bAll = true;sRes = ReplaceStr(s, "&lt;", "<",bAll);sRes = ReplaceStr(sRes, "&gt;", ">",bAll);sRes = ReplaceStr(sRes, "&quot;", '"',bAll);sRes = ReplaceStr(sRes, "&apos;", "'",bAll);sRes = ReplaceStr(sRes, "&amp;", "&", bAll);}
return sRes;}
/////////////////////////////////////////////////////////////////////////
this.PostExec = function( fn, oData )
{
function fnPostHandler()
{ 
fn( oData );}
return window.setTimeout( fnPostHandler, 0 );}
///////////////////////////////////////////////////////////////////////
this.IsDigitOrLetterKey = function( code )
{
return (( c_nKeyCode0 <= code )&&( c_nKeyCode9 >= code )) ||
(( c_nKeyCodeA <= code )&&( c_nKeyCodeZ >= code ));}
this.IsFunctionKey = function( code )
{
return ( c_nKeyCodeF1 <= code )&&( c_nKeyCodeF12 >= code );}
this.IsEnterKey = function( code )
{
return ( c_nKeyCodeEnter == code )
}
this.IsEscKey = function( code )
{
return ( c_nKeyCodeEsc == code )
}
this.IsTabKey = function( code )
{
return ( c_nKeyCodeTab == code )
}
this.GetFnKeyStr = function( code )
{
var s = "F" + (code - c_nKeyCodeF1 + 1 );} 
this.IsNavigationKey = function( code )
{
return ( c_nKeyPageUp <= code )&&( c_nKeyDownArrow >= code );}
this.IsUpArrowKey = function( code )
{
return ( c_nKeyUpArrow == code );}
this.IsLeftArrowKey = function( code )
{
return ( c_nKeyLeftArrow == code );}
this.IsRightArrowKey = function( code )
{
return ( c_nKeyRightArrow == code );}
this.IsDownArrowKey = function( code )
{
return ( c_nKeyDownArrow == code );}
this.IsPageUpKey = function( code )
{
return ( c_nKeyPageUp == code );}
this.IsPageDownKey = function( code )
{
return ( c_nKeyPageDown == code );}
this.IsHomeKey = function( code )
{
return ( c_nKeyHome == code );}
this.IsEndKey = function( code )
{
return ( c_nKeyEnd == code );}
///////////////////////////////////////////////////////////////////////
function ReplaceStr( sWhere, sWhat, sWith, bAll )
{
var oRegExp = new RegExp( sWhat, bAll ? "g" : "" );return sWhere.replace( oRegExp, sWith );}
function Base64Utf8Encode( str )
{
str = str.replace(/\r\n/g,"\n");var sUtfStr = "";for (var n = 0;n < str.length;n++)
{
var c = str.charCodeAt(n);if (c < 128)
{
sUtfStr += String.fromCharCode(c);}
else if((c > 127) && (c < 2048))
{
sUtfStr += String.fromCharCode((c >> 6) | 192);sUtfStr += String.fromCharCode((c & 63) | 128);}
else
{
sUtfStr += String.fromCharCode((c >> 12) | 224);sUtfStr += String.fromCharCode(((c >> 6) & 63) | 128);sUtfStr += String.fromCharCode((c & 63) | 128);}
}
return sUtfStr;}
function Base64Utf8Decode( sUtfStr )
{
var str = "";var i = 0;var c = c1 = c2 = 0;while ( i < sUtfStr.length )
{
c = sUtfStr.charCodeAt(i);if (c < 128)
{
str += String.fromCharCode(c);i++;}
else if((c > 191) && (c < 224))
{
c2 = sUtfStr.charCodeAt(i+1);str += String.fromCharCode(((c & 31) << 6) | (c2 & 63));i += 2;}
else
{
c2 = sUtfStr.charCodeAt(i+1);c3 = sUtfStr.charCodeAt(i+2);str += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));i += 3;}
}
return string;}
}