function test(x) {
 x.blur();
}

function show_layer(x)
{
if(document.layers)
document.layers[x].visibility="show";
else
document.getElementById([x]).style.visibility="visible";
}

function hide_layer(x)
{
if(document.layers)
document.layers[x].visibility="hide";
else
document.getElementById([x]).style.visibility="hidden";
}
var old;
var memold;
var subold;
if(document.layers)
{
window.captureEvents(Event.MOUSEUP);
window.onmouseup=do_out;
}
else
{
document.onmouseup=do_out;
}

function do_in(x)
{
if(!old)
old=memold;
if(old!=x)
{
show_layer(x);
old=x;
} else
old="";
}

function do_out()
{
if(old)
hide_layer(old);
memold=old; old="";
}