Password Protect >>> Ascii Encryption.


		<script 
		language="javascript"
		type="text/javascript">

		/* Visit http://www.yaldex.com/ 
		for full source code

		and get more free JavaScript, CSS and DHTML scripts! */

		<!-- Begin

		function 
		Encrypt(theText)
		{

		output 
		=
		new
		String;

		Temp 
		=
		new
		Array();

		Temp2 
		=
		new
		Array();

		TextSize 
		= 
		theText.length;

		for
		(i
		=
		0; 
		i < 
		TextSize; 
		i++)
		{

		rnd 
		=
		Math.round(Math.random()
		*
		122)
		+
		68;

		Temp[i]
		= 
		theText.charCodeAt(i)
		+ 
		rnd;

		Temp2[i]
		= 
		rnd;

		}

		for
		(i
		=
		0; 
		i < 
		TextSize; 
		i++)
		{

		output 
		+=
		String.fromCharCode(Temp[i], 
		Temp2[i]);

		}

		return 
		output;

		}

		function 
		unEncrypt(theText)
		{

		output 
		=
		new
		String;

		Temp 
		=
		new
		Array();

		Temp2 
		=
		new
		Array();

		TextSize 
		= 
		theText.length;

		for
		(i
		=
		0; 
		i < 
		TextSize; 
		i++)
		{

		Temp[i]
		= 
		theText.charCodeAt(i);

		Temp2[i]
		= 
		theText.charCodeAt(i
		+
		1);

		}

		for
		(i
		=
		0; 
		i < 
		TextSize; 
		i = 
		i+2)
		{

		output 
		+=
		String.fromCharCode(Temp[i]
		- 
		Temp2[i]);

		}

		return 
		output;

		}

		//  End -->

		</script>

		<center>

		<form
		name=encform
		onsubmit="return 
		false;">

		<textarea 
		name=box1
		rows=5
		cols=50>The 
		quick brown fox jumps over the lazy dog</textarea>

		<br>

		<input
		type=button
		value="Encrypt 
		Box1 to Box2" 
		onClick="this.form.box2.value=Encrypt(this.form.box1.value);">

		<br>

		<textarea
		name=box2
		rows=5
		cols=50></textarea>

		<br>

		<input
		type=button
		value="Decrypt 
		Box2 to Box3" 
		onClick="this.form.box3.value=unEncrypt(this.form.box2.value);">

		<br>

		<textarea
		name=box3
		rows=5
		cols=50></textarea>

		</form>

		</center>