//Lib objects  ********************
initImages(["nav11", "images/nav1.gif"],
			["nav12", "images/nav1_ro.gif"],
			["nav21", "images/nav2.gif"],
			["nav22", "images/nav2_ro.gif"],
			["nav31", "images/nav3.gif"],
			["nav32", "images/nav3_ro.gif"],
			["nav41", "images/nav4.gif"],
			["nav42", "images/nav4_ro.gif"],
			["nav51", "images/nav5.gif"],
			["nav52", "images/nav5_ro.gif"],
			["nav61", "images/nav6.gif"],
			["nav62", "images/nav6_ro.gif"],
			["nav71", "images/nav7.gif"],
			["nav72", "images/nav7_ro.gif"]);

//preload
function initImages()
{
	args_images_II = initImages.arguments;

	for (var i = 0; i < args_images_II.length; i++)
	{
		eval (args_images_II[i][0] + '= new Image();')
		eval (args_images_II[i][0] + '.src = "' + args_images_II[i][1] + '";');
	}
}

function showImages()
{
	args_images_SI = showImages.arguments;
	
	eval ('document.images["' + args_images_SI[0] + '"].src = ' + args_images_SI[1] + '.src;');
}