10.2 网页文字背景特效.htm

<span id="theText" style="width:100%">
<h2 align="center"><font color="#ffffff">北京欢迎你！</font></h2>
</span><script>
var from = 5;
var to = 50;
var delay = 5;
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>