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This code is and opensource code from Dynamic Drive.

Add the Matrix effect to any text. I have displayed the code for and entire demo page. Any text that you want to have the Matrix effect, put it inside <div id="matrix> and </div>.

JavaScript, 175 lines
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style type="text/css">
.matrix { font-family: OCR A Extended; font-size:12pt; text-align:center; width:10px; padding:0px; margin:0px;}
</style>

<script type="text/javascript" language="JavaScript">

<!--
var rows=11; // must be an odd number
var speed=50; // lower is faster
var reveal=2; // between 0 and 2 only. The higher, the faster the word appears
var effectalign="default" //enter "center" to center it.

/***********************************************
* The Matrix Text Effect- by Richard Womersley (http://www.mf2fm.co.uk/rv)
* This notice must stay intact for use
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var w3c=document.getElementById && !window.opera;;
var ie45=document.all && !window.opera;
var ma_tab, matemp, ma_bod, ma_row, x, y, columns, ma_txt, ma_cho;
var m_coch=new Array();
var m_copo=new Array();
window.onload=function() {
	if (!w3c && !ie45) return
  var matrix=(w3c)?document.getElementById("matrix"):document.all["matrix"];
  ma_txt=(w3c)?matrix.firstChild.nodeValue:matrix.innerHTML;
  ma_txt=" "+ma_txt+" ";
  columns=ma_txt.length;
  if (w3c) {
    while (matrix.childNodes.length) matrix.removeChild(matrix.childNodes[0]);
    ma_tab=document.createElement("table");
    ma_tab.setAttribute("border", 0);
    ma_tab.setAttribute("align", effectalign);
    ma_tab.style.backgroundColor="#000000";
    ma_bod=document.createElement("tbody");
    for (x=0; x<rows; x++) {
      ma_row=document.createElement("tr");
      for (y=0; y<columns; y++) {
        matemp=document.createElement("td");
        matemp.setAttribute("id", "Mx"+x+"y"+y);
        matemp.className="matrix";
        matemp.appendChild(document.createTextNode(String.fromCharCode(160)));
        ma_row.appendChild(matemp);
      }
      ma_bod.appendChild(ma_row);
    }
    ma_tab.appendChild(ma_bod);
    matrix.appendChild(ma_tab);
  } else {
    ma_tab='<ta'+'ble align="'+effectalign+'" border="0" style="background-color:#000000">';
    for (var x=0; x<rows; x++) {
      ma_tab+='<t'+'r>';
      for (var y=0; y<columns; y++) {
        ma_tab+='<t'+'d class="matrix" id="Mx'+x+'y'+y+'">&nbsp;</'+'td>';
      }
      ma_tab+='</'+'tr>';
    }
    ma_tab+='</'+'table>';
    matrix.innerHTML=ma_tab;
  }
  ma_cho=ma_txt;
  for (x=0; x<columns; x++) {
    ma_cho+=String.fromCharCode(32+Math.floor(Math.random()*94));
    m_copo[x]=0;
  }
  ma_bod=setInterval("mytricks()", speed);
}

function mytricks() {
  x=0;
  for (y=0; y<columns; y++) {
    x=x+(m_copo[y]==100);
    ma_row=m_copo[y]%100;
    if (ma_row && m_copo[y]<100) {
      if (ma_row<rows+1) {
        if (w3c) {
          matemp=document.getElementById("Mx"+(ma_row-1)+"y"+y);
          matemp.firstChild.nodeValue=m_coch[y];
        }
        else {
          matemp=document.all["Mx"+(ma_row-1)+"y"+y];
          matemp.innerHTML=m_coch[y];
        }
        matemp.style.color="#33ff66";
        matemp.style.fontWeight="bold";
      }
      if (ma_row>1 && ma_row<rows+2) {
        matemp=(w3c)?document.getElementById("Mx"+(ma_row-2)+"y"+y):document.all["Mx"+(ma_row-2)+"y"+y];
        matemp.style.fontWeight="normal";
        matemp.style.color="#00ff00";
      }
      if (ma_row>2) {
          matemp=(w3c)?document.getElementById("Mx"+(ma_row-3)+"y"+y):document.all["Mx"+(ma_row-3)+"y"+y];
        matemp.style.color="#009900";
      }
      if (ma_row<Math.floor(rows/2)+1) m_copo[y]++;
      else if (ma_row==Math.floor(rows/2)+1 && m_coch[y]==ma_txt.charAt(y)) zoomer(y);
      else if (ma_row<rows+2) m_copo[y]++;
      else if (m_copo[y]<100) m_copo[y]=0;
    }
    else if (Math.random()>0.9 && m_copo[y]<100) {
      m_coch[y]=ma_cho.charAt(Math.floor(Math.random()*ma_cho.length));
      m_copo[y]++;
    }
  }
  if (x==columns) clearInterval(ma_bod);
}

function zoomer(ycol) {
  var mtmp, mtem, ytmp;
  if (m_copo[ycol]==Math.floor(rows/2)+1) {
    for (ytmp=0; ytmp<rows; ytmp++) {
      if (w3c) {
        mtmp=document.getElementById("Mx"+ytmp+"y"+ycol);
        mtmp.firstChild.nodeValue=m_coch[ycol];
      }
      else {
        mtmp=document.all["Mx"+ytmp+"y"+ycol];
        mtmp.innerHTML=m_coch[ycol];
      }
      mtmp.style.color="#33ff66";
      mtmp.style.fontWeight="bold";
    }
    if (Math.random()<reveal) {
      mtmp=ma_cho.indexOf(ma_txt.charAt(ycol));
      ma_cho=ma_cho.substring(0, mtmp)+ma_cho.substring(mtmp+1, ma_cho.length);
    }
    if (Math.random()<reveal-1) ma_cho=ma_cho.substring(0, ma_cho.length-1);
    m_copo[ycol]+=199;
    setTimeout("zoomer("+ycol+")", speed);
  }
  else if (m_copo[ycol]>200) {
    if (w3c) {
      mtmp=document.getElementById("Mx"+(m_copo[ycol]-201)+"y"+ycol);
      mtem=document.getElementById("Mx"+(200+rows-m_copo[ycol]--)+"y"+ycol);
    }
    else {
      mtmp=document.all["Mx"+(m_copo[ycol]-201)+"y"+ycol];
      mtem=document.all["Mx"+(200+rows-m_copo[ycol]--)+"y"+ycol];
    }
    mtmp.style.fontWeight="normal";
    mtem.style.fontWeight="normal";
    setTimeout("zoomer("+ycol+")", speed);
  }
  else if (m_copo[ycol]==200) m_copo[ycol]=100+Math.floor(rows/2);
  if (m_copo[ycol]>100 && m_copo[ycol]<200) {
    if (w3c) {
      mtmp=document.getElementById("Mx"+(m_copo[ycol]-101)+"y"+ycol);
      mtmp.firstChild.nodeValue=String.fromCharCode(160);
      mtem=document.getElementById("Mx"+(100+rows-m_copo[ycol]--)+"y"+ycol);
      mtem.firstChild.nodeValue=String.fromCharCode(160);
    }
    else {
      mtmp=document.all["Mx"+(m_copo[ycol]-101)+"y"+ycol];
      mtmp.innerHTML=String.fromCharCode(160);
      mtem=document.all["Mx"+(100+rows-m_copo[ycol]--)+"y"+ycol];
      mtem.innerHTML=String.fromCharCode(160);
    }
    setTimeout("zoomer("+ycol+")", speed);
  }
}
// -->
</script>
</head>

<body>
<div id="matrix">ACTIVE STATE</div>
</body>
</html>

Basically, this code is just for fun and entertainment. If you find anything useful to do with this script, let me know

Created by Panda Moniom on Tue, 28 Jul 2009 (MIT)
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