window.onload = blink;

var b_timer = null; // blink timer
var b_on = true; // blink state
var blnkrs = null; // array of spans
function mouseover()
{
blnkrs = new Array();
}

function blink() {
var tmp = document.getElementsByTagName("span");
if (tmp) {
blnkrs = new Array();
var b_count = 0;
for (var i = 0; i < tmp.length; ++i) {
if (tmp[i].className == "blink") {
blnkrs[b_count] = tmp[i];
++b_count;
}
}
// time in m.secs between blinks
// 500 = 1/2 second
blinkTimer(500);
}
}

function blinkTimer(ival) {
if (b_timer) {
window.clearTimeout(b_timer);
b_timer = null;
}
blinkIt();
b_timer = window.setTimeout('blinkTimer(' + ival + ')', ival);
}

function blinkIt() {
for (var i = 0; i < blnkrs.length; ++i) {
if (b_on == true) {
blnkrs[i].style.visibility = "hidden";
}
else {
blnkrs[i].style.visibility = "visible";
}
}
b_on =!b_on;
}