function doBlink()
{
        var blink = document.all.tags("BLINK")
	for (var i=0; i<blink.length; i++)
		blink[i].style.visibility = blink[i].style.visibility == "" ? "hidden" : "" 
}

function startBlink()
{
	if (document.all)
		setInterval("doBlink()",500)
}

window.onload = startBlink;