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JS实现打字机式字符输出效果

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12/02
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<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312">

<title>JS打字机风格的字符输出特效</title>

<SCRIPT language="JavaScript">

<!--

 var layers = document.layers, style = document.all, both = layers || style, idme=908601;

 if (layers) { layerRef = 'document.layers'; styleRef = ''; } if (style) { layerRef = 'document.all'; styleRef = '.style'; }

 function writeOnText(obj, str) {

   if (layers) with (document[obj]) { document.open();  document.write(str); document.close(); }

   if (style) eval(obj+'.innerHTML= str');

 }

 //以下是输出的内容，自己修改即可。

 var dispStr = new Array(

 "<font color=red size=3>欢迎来到源码爱好者...</font><br><font color=green size=3>她为我们提供各类编程源码、素材、书籍教程、设计模板、网页特效代码以及常用软件下载。</font><br><font color=blue size=3>是一个有质量的学习型源码下载站。</font>"

 );

 var overMe=0;

 function txtTyper(str, idx, idObj, spObj, clr1, clr2, delay, plysnd) {

   var tmp0 = tmp1 = '', skip = 0;

     if (both && idx <= str.length) {

  if (str.charAt(idx) == '<') { while (str.charAt(idx) != '>') idx++; idx++; }

  if (str.charAt(idx) == '&' && str.charAt(idx+1) != ' ') { while (str.charAt(idx) != ';') idx++; idx++; }

  tmp0 = str.slice(0,idx);

  tmp1 = str.charAt(idx++);

  if (overMe==0 && plysnd==1) {

    if (navigator.plugins[0]) {

      if (navigator.plugins["LiveAudio"][0].type=="audio/basic" && navigator.javaEnabled()) {

   document.embeds[0].stop();

   setTimeout("document.embeds[0].play(false)",100); }

    } else if (document.all) {

   ding.Stop();

   setTimeout("ding.Run()",100);

    }

    overMe=1;

  } else overMe=0; 

  writeOnText(idObj, "<span class="+spObj+"><font color='"+clr1+"'>"+tmp0+"</font><font color='"+clr2+"'>"+tmp1+"</font></span>");

  setTimeout("txtTyper('"+str+"', "+idx+", '"+idObj+"', '"+spObj+"', '"+clr1+"', '"+clr2+"', "+delay+" ,"+plysnd+")",delay);

   }

 } 

 function init() {

  txtTyper(dispStr[0], 0, 'ttl0', 'ttl1', '#339933', '#99FF33', 50, 0);

 }

 // -->

</SCRIPT>

</head>

<body bgcolor="#fef4d9" onload="init()">

<DIV class=ttl1 id=ttl0><SPAN class=ttl1></SPAN></DIV>

</body>

</html>

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