// JavaScript Document

var b_timer = null; 
var b_on = true;
var blnkrs = null;

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; 
} 
} 
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; 
}