function blink() {
if (!document.all) { return; }
for (i = 0; i < document.all.length; i++) {
obj = document.all(i);
if (obj.className == "blink") {
if (obj.style.visibility == "visible") {
obj.style.visibility = "hidden";
} else {
obj.style.visibility = "visible";
}
}
}
setTimeout("blink()", 600);
}