// JavaScript Document
function swapLayers($value)
{
var $value=$value-3;
var $msg="";
var $display = new Array();
var $newvalue = new Array();
for (var i = 0; i < 10; i++) 
  {
	    $newvalue[i]="layer"+i;
	    $display[i]="hidden";
		if ($newvalue[i] == "layer"+$value)	$display[i] = "visible";
   }

	document.getElementById("$newvalue[0]").style.visibility = "$display[0]";
	document.getElementById("$newvalue[1]").style.visibility = "$display[1]";
	document.getElementById("$newvalue[2]").style.visibility = "$display[2]";
	document.getElementById("$newvalue[3]").style.visibility = "$display[3]";
	document.getElementById("$newvalue[4]").style.visibility = "$display[4]";
	document.getElementById("$newvalue[5]").style.visibility = "$display[5]";
	document.getElementById("$newvalue[6]").style.visibility = "$display[6]";
	document.getElementById("$newvalue[7]").style.visibility = "$display[7]";
	document.getElementById("$newvalue[8]").style.visibility = "$display[8]";
	document.getElementById("$newvalue[9]").style.visibility = "$display[9]";


for (var i = 0; i < 10; i++)
	{
		$msg=$msg+", "+$newvalue[i]+", "+$display[i];
	}
	alert($msg);
}