function blink() { 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("blink()",500)
                      }
window.onload = startBlink;