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()", 600 ) 
	}