var n3 = false;
image1       = new Image();  image1.src   = "http://www.backtobasicslearning.com/images/videox.gif";
image1on     = new Image();  image1on.src = "http://www.backtobasicslearning.com/images/videoy.gif";

image2       = new Image();  image2.src   = "http://www.backtobasicslearning.com/images/articlesx.gif";
image2on     = new Image();  image2on.src = "http://www.backtobasicslearning.com/images/articlesy.gif";



function on3(name)
{    document[name].src = eval(name + "on.src");   }

function off3(name)
{    document[name].src = eval(name + ".src");     }

n3 = true;
function on(name)
{
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}

function off(name)
{
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}