Fluorescent word effect of Javascript_button special effect

<span id="theText" style="width:100%"> <h1>Fluorescent effect example</h1> </span>
[Ctrl A select all Note: If you need to introduce external Js, you need to refresh to execute

]<script> <!-- var from = 1; var to = 4; var delay = 55; //闪的速度 var glowColor = "lime";//颜色 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>