var wt = ""; //temporary holder
var et = ""; //encoded text
var all = "";
var all2 = "";
var alpha2 = "abcdefghijklmnopqrstuvwxyz";
var a = "a"; var b = "b"; var c = "c"; var d = "d";
var e = "e"; var f = "f"; var g = "g"; var h = "h";
var i = "i"; var j = "j"; var k = "k"; var l = "l";
var m = "m"; var n = "n"; var o = "o"; var p = "p";
var q = "q"; var r = "r"; var s = "s"; var t = "t";
var u = "u"; var v = "v"; var w = "w"; var x = "x";
var y = "y"; var z = "z";
var alpha = new Array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z');

function encode(index) 
{
wt = "";
et = "";
all = "";
var theText = document.PaymentInfo.compcode.value.toLowerCase();
var num = 0;
num = index;		// document.f1.tb1.value;
i2 = 0;
for (i = 0; i < num; i++) 
	{ 
	i2 = i2 + 1;
	if (i2 == 26) i2 = 0;
	}
a = alpha[i2]; i2 = next(i2);
b = alpha[i2]; i2 = next(i2);
c = alpha[i2]; i2 = next(i2);
d = alpha[i2]; i2 = next(i2);
e = alpha[i2]; i2 = next(i2);
f = alpha[i2]; i2 = next(i2);
g = alpha[i2]; i2 = next(i2);
h = alpha[i2]; i2 = next(i2);
i = alpha[i2]; i2 = next(i2);
j = alpha[i2]; i2 = next(i2);
k = alpha[i2]; i2 = next(i2);
l = alpha[i2]; i2 = next(i2);
m = alpha[i2]; i2 = next(i2);
n = alpha[i2]; i2 = next(i2);
o = alpha[i2]; i2 = next(i2);
p = alpha[i2]; i2 = next(i2);
q = alpha[i2]; i2 = next(i2);
r = alpha[i2]; i2 = next(i2);
s = alpha[i2]; i2 = next(i2);
t = alpha[i2]; i2 = next(i2);
u = alpha[i2]; i2 = next(i2);
v = alpha[i2]; i2 = next(i2);
w = alpha[i2]; i2 = next(i2);
x = alpha[i2]; i2 = next(i2);
y = alpha[i2]; i2 = next(i2);
z = alpha[i2]; i2 = next(i2);
var all = a+b+c+d+e+f+g+h+i+j+k+l+m+n+o+p+q+r+s+t+u+v+w+x+y+z;
all = all.split("");
return encode2(all);

}

function next(x) 
	{
	if (x == 25) x = -1;
	x = x + 1;
	return x;
	}

function encode2(all2) 
	{
	var temp2 = document.PaymentInfo.compcode.value.toLowerCase();
	temp2 = temp2.split("");
	var q = 0;
	while (q < temp2.length) 
		{ 
		wt = temp2[q];
		var where = alpha2.indexOf(wt);
		if (where == -1) { et += wt; }
		if (where != -1) { et += all2[where]; }
		q = q + 1;
		}

	// document.f1.ta1.value = et;
	return et;

	}



function decode() {
wt = "";
et = "";
all = "";
all3 = "";
var theText = document.f1.ta1.value.toLowerCase();
var num = document.f1.tb1.value;
i2 = 0;
for (i = 0; i < num; i++) {
i2 = i2 + 1;
if (i2 == 26) i2 = 0;
}
a = alpha[i2]; i2 = next(i2);
b = alpha[i2]; i2 = next(i2);
c = alpha[i2]; i2 = next(i2);
d = alpha[i2]; i2 = next(i2);
e = alpha[i2]; i2 = next(i2);
f = alpha[i2]; i2 = next(i2);
g = alpha[i2]; i2 = next(i2);
h = alpha[i2]; i2 = next(i2);
i = alpha[i2]; i2 = next(i2);
j = alpha[i2]; i2 = next(i2);
k = alpha[i2]; i2 = next(i2);
l = alpha[i2]; i2 = next(i2);
m = alpha[i2]; i2 = next(i2);
n = alpha[i2]; i2 = next(i2);
o = alpha[i2]; i2 = next(i2);
p = alpha[i2]; i2 = next(i2);
q = alpha[i2]; i2 = next(i2);
r = alpha[i2]; i2 = next(i2);
s = alpha[i2]; i2 = next(i2);
t = alpha[i2]; i2 = next(i2);
u = alpha[i2]; i2 = next(i2);
v = alpha[i2]; i2 = next(i2);
w = alpha[i2]; i2 = next(i2);
x = alpha[i2]; i2 = next(i2);
y = alpha[i2]; i2 = next(i2);
z = alpha[i2]; i2 = next(i2);
var all = a+b+c+d+e+f+g+h+i+j+k+l
+m+n+o+p+q+r+s+t+u+v+w+x+y+z;
all3 = all;
all = all.split("");
decode2(all3);
}
function decode2(all2) { 
var alpha2 = "abcdefghijklmnopqrstuvwxyz";
alpha2 = alpha2.split("");
var temp2 = document.f1.ta1.value.toLowerCase();
temp2 = temp2.split("");
var v = 0;
while (v < temp2.length) {
wt = temp2[v];
var where = all2.indexOf(wt);
if (where == -1) { et += wt; }
if (where != -1) { et += alpha2[where]; }
v = v + 1;
}
document.f1.ta1.value = et;
}