анимация на js (светящийся текст)

<SPAN ID="theText" STYLE="width:100%">
<H1><B>Коллекция скриптов</B></H1>
</SPAN>

<SCRIPT>
<!--
var from = 5;
var to = 15;
var delay = 60;
var glowColor = "lime";
var i = to;
var j = 0;

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;
}
}

//-->
</SCRIPT>