<!-- 
//cd2.js
function stopErrors() {
 return true;
}
window.onerror = stopErrors;

function selectAll(theField) {
var tempval=eval("document."+theField)
tempval.focus()
tempval.select()
}

defaultStatus = "Level 3"  

//	Add or remove characters to 'alphabet' in the same way as shown.
//	Any characters not in alphabet will be ignored when encrypting.
alphabet = 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','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','1','2','3','4','5','6','7','8','9','0','(',')','~','!','@','#','$','%','^','&','*','-','=','+','_','.',',','`','{','}','[',']','|','\'','\\','\"','/','?',':',';','>','<',' ','\n');
//	Temporary array for when producing binary numbers. Longer length = better encryption.
//	Note:	the max binary number must be more than the alphabet length.
//		there must be an 'a' at the end of the array.
tempbin = new Array("0","0","0","0","0","0","0","0","0","0","0","0","0","0","0","a");
//	Binary numbers stored here and refer to original alphabet.
binary = new Array();
//	Variables for the jumbled(encrypted) alphabet, decrypted text, and encrypted text.
var encalphabet;
var decrypted;
var encrypted;
//	function to make the binary numbers
//	l = current position
//	len = binary number length
//	z = current number
//	The rest is straight forward - figure it out for your self.
function makebinary(l,start,z) {
	if (l < 0)
		return;
	if (tempbin[l] == "1") {
		tempbin[l] = "0";
		x = makebinary(l-1,start,z);
	}else if (tempbin[l] == "0"){
		tempbin[l] = "1";
	}else if (tempbin[l] == "a"){
		tempbin[l] = "0";
	}
	if (l == start) {
		binary[z] = "";
		for (i = 0; i <= l; i++)
			binary[z] += tempbin[i];
	}
	return;
}
//	Calls makebinary() to make enough numbers for all of alphabet.
for (z = 0; z < alphabet.length; z++) {
	makebinary(tempbin.length-1,tempbin.length-1,z);
}
//	Checks to see if a letter (alphabet[x]) is in encalphabet so there are no duplicates in encalphabet.
function in_encalphabet(x) {
	if (x == -1)
		return 0;
	z = alphabet[x];
	for (i = 0; i < encalphabet.length; i++) {
		if (z == encalphabet.substr(i,1))
			return 0;
	}
	return 1;
}
//	Encrypt function (well duh!!)
function encrypt() {
//	Set start values
	decrypted = document.enc_form.decrypted.value;
	encalphabet = "";
	encrypted = "";
//	Make encalphabet (ie. jumble alphabet)
	for (i = 0; i < alphabet.length; i++) {
		x = -1;
		while (in_encalphabet(x) == 0)
			x = Math.floor(alphabet.length*Math.random());
	
		encalphabet += alphabet[x];
	}
	temp = encalphabet;
//	First level of encryption.
//	Uses encalphabet's order to jumble text.
	for (i = 0; i < decrypted.length; i++) {
		for (z = 0; z < encalphabet.length; z++) {
			if (decrypted.substr(i,1) == alphabet[z]) {
				temp += encalphabet.substr(z,1);
				break;
			}
		}
	}
//	Second level of encryption.
//	Sets everything into binary.
	for (i = 0; i < temp.length; i++) {
		for (z = 0; z < alphabet.length; z++) {
			if (temp.substr(i,1) == alphabet[z]) {
				encrypted += binary[z];
				break;
			}
		}
	}
//	Display encrypted text.
	document.enc_form.encrypted.value = encrypted;
}
//	This is obviously the decryption function.
function decrypt() {
//	Set initial values.
	encrypted = document.enc_form.encrypted.value;
	encalphabet = "";
	temp = "";
	decrypted = "";
//	Go from binary to first level encryption (ie. Still jumbled).
	for (i = 0; i < encrypted.length; i+=tempbin.length) {
		for (z = 0; z < alphabet.length; z++) {
			if (encrypted.substr(i,tempbin.length) == binary[z]) {
				temp += alphabet[z];
				break;
			}
		}
	}
//	Set the order of the alphabet (into encalphabet) from jumbled text.
	for (i = 0; i < alphabet.length; i++)
		encalphabet += temp.substr(i,1);
//	Unjumble the text.
	while (i < encrypted.length) {
		for (z = 0; z < encalphabet.length; z++) {
			if (temp.substr(i,1) == encalphabet.substr(z,1)) {
				decrypted += alphabet[z];
				break;
			}
		}
		i++;
	}
//	Display the decrypted text.
	document.enc_form.decrypted.value = decrypted;
}
//-->