Convert Chinese characters to UTF8 encoding

Code | chinese | Convert//--------convert Chinese characters to UTF8 encoding------------------------//
function EncodeUtf8 (S1)
{
var s = Escape (S1);
var sa = s.split ("%");
var Retv = "";
if (Sa[0]!= "")
{
Retv = sa[0];
}
for (var i = 1; i < sa.length i + +)
{
if (sa[i].substring (0,1) = = "U")
{
Retv + + Hex2utf8 (Str2hex (sa[i].substring (1,5)));

}
else Retv + = "%" + sa[i];
}

return RETV;
}
function Str2hex (s)
{
var c = "";
var n;
var ss = "0123456789ABCDEF";
var digs = "";
for (var i = 0; i < s.length i + +)
{
c = S.charat (i);
n = ss.indexof (c);
Digs + = Dec2dig (eval (n));

}
return value;
return digs;
}
function Dec2dig (N1)
{
var s = "";
var n2 = 0;
for (var i = 0; i < 4; i++)
{
N2 = Math.pow (2,3-i);
if (N1 >= n2)
{
s + + ' 1 ';
N1 = N1-N2;
}
Else
s + + ' 0 ';

}
return s;

}
function Dig2dec (s)
{
var Retv = 0;
if (s.length = 4)
{
for (var i = 0; i < 4; i + +)
{
Retv + = eval (S.charat (i)) * MATH.POW (2, 3-i);
}
return RETV;
}
return-1;
}
function Hex2utf8 (s)
{
var RetS = "";
var TempS = "";
var ss = "";
if (s.length = 16)
{
TempS = "1110" + s.substring (0, 4);
TempS + = "Ten" + s.substring (4, 10);
TempS + = "Ten" + s.substring (10,16);
var sss = "0123456789ABCDEF";
for (var i = 0; i < 3; i + +)
{
RetS + = "%";
SS = temps.substring (I * 8, (eval (i) +1) *8);



RetS + + Sss.charat (Dig2dec (ss.substring (0,4)));
RetS + + Sss.charat (Dig2dec (ss.substring (4,8)));
}
return RetS;
}
Return "";
}