function tidnes(InString)
{
	var i, s, t,  OutString;
	
	OutString=new String();
	for(i=InString.length-1; i>= 0; i--)
	{
		t = InString.charCodeAt(i);
		s= String.fromCharCode(t-1);
		OutString += s;
	}

	return OutString;
}

function tiesrever(InString)
{
	var i, s, t,  OutString;
	
	OutString=new String();
	for(i=InString.length-1; i>= 0; i--)
	{
		t = InString.charCodeAt(i);

		s= String.fromCharCode(t+1);

		OutString += s;
	}

	return OutString;
}