pro-Gramas tu biblioteca de programacion

<!-- Copiar dentro del tag BODY -->
<script language="Javascript">

// By Mike Hall (MHall75819@aol.com)

var NS4 = (document.layers); 
var IE4 = (document.all);

var win = window;    // Con frames usar top.nombre.window;
var n   = 0;

function findInPage(str) {

  var txt, i, found;

  if (str == "")
    return false;

  // Find next occurance of the given string on the page, 
wrap around to the
  // start of the page if necessary.

  if (NS4) {

    // Look for match starting at the current point. if not 
found, rewind
    // back to the first match.

    if (!win.find(str))
      while(win.find(str, false, true))
        n++;
    else
      n++;

    // if not found in either direction, give message.

    if (n == 0)
      alert("Not found.");
  }

  if (IE4) {
    txt = win.document.body.createTextRange();

    // Find the nth match from the top of the page.

    for (i = 0; i <= n && (found = txt.findText(str)) != 
false; i++) {
      txt.moveStart("character", 1);
      txt.moveEnd("textedit");
    }

    // if found, mark it and scroll it into view.

    if (found) {
      txt.moveStart("character", -1);
      txt.findText(str);
      txt.select();
      txt.scrollIntoView();
      n++;
    }

    // Otherwise, start over at the top of the page and find 
first match.

    else {
      if (n > 0) {
        n = 0;
        findInPage(str);
      }

      // Not found anywhere, give message.

      else
        alert("Not found.");
    }
  }

  return false;
}

</script>

<form name="search" onsubmit="return findInPage(this.string.value);">
  <font size="2"><p></font><font size="3"><input name="string" 
type="text" size="15"
  onChange="n = 0;"></font> <input type="submit" value="Buscar"> </p>
</form>