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()",1000)
	}
}

window.onload = startBlink;