Код:
  <!-- Начало скрипта - Tritroichki --> 
<DIV style="font: 10pt arial"></DIV>
<DIV style="width: 400; height: 1"><BR></DIV><SPAN id=theText style="width: 100%">
<H2><font color="#FFFFFF">~*Ваш текст*~</font></H2></SPAN>
<SCRIPT>
<!-- 

file://range of glowing
var from = 5;
var to = 11; 
file://speed of pulsing
var delay = 55; 
file://color of glow, name or RGB value (example:'#00FF00')
var glowColor = "#5C6390"; 

file://NO MORE EDITING!!!
var i = to;
var j = 0; 
file://can be called here or whenever you want the text to start pulsing
textPulseDown(); 
function textPulseUp()
{
if (!document.all)
return
if (i < to)
{
theText.style.filter = "Glow(Color=" + glowColor + ", Strength=" + i + ")";
i++;
theTimeout = setTimeout('textPulseUp()',delay);
return 0;
} 
if (i = to)
{
theTimeout = setTimeout('textPulseDown()',delay);
return 0;
} 

} 
function textPulseDown()
{
if (!document.all)
return
if (i > from)
{
theText.style.filter = "Glow(Color=" + glowColor + ", Strength=" + i + ")";
i--;
theTimeout = setTimeout('textPulseDown()',delay);
return 0;
} 
if (i = from)
{
theTimeout = setTimeout('textPulseUp()',delay);
return 0;
}
} 
file://-->
</SCRIPT>
<!-- Конец скрипта - Tritroichki -->