JavaScript That Types In A Textarea

Description
A JavaScript that types text, one letter at a time, into a Textarea. Much more useful than the status bar version....View A Script Demo

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">

<HTML>

<HEAD>

<META NAME="Generator" CONTENT="TextPad 4.4">

<LINK href="general.css" rel="stylesheet" type="text/css">

<SCRIPT LANGUAGE = "JavaScript">

/*

This source code is released to the public domain with the provision that

the copyright information remains in the source code.

Copyright (c) by: Robert N Bovara All Rights Reserved.

*/

var outMsg = "";

var i = 0;

var lineNo = 1;

var timerDM=null;

var msg = " ";

function araVob() {

}

var ScreenLine = new araVob();

ScreenLine[1]  = "Doesn't this look better than status bar displays?"

ScreenLine[2]  =  "Isn't this easier to read than \"sideways\" scrollers?"

ScreenLine[3]  = " ";

ScreenLine[4]  =  "How many lines can you display on the status bar?"

ScreenLine[5]  =  "Here, you can not only display more than one line,\f ";

ScreenLine[6]  = "But, you can also display more than one \"page\" !"

ScreenLine[7]  = " ";

ScreenLine[8]  =  "Aren't you glad your browser interprets JavaScript (JScript)?"

ScreenLine[9]  = " ";

ScreenLine[10] =  "Enjoy!....\f";

ScreenLine[11] = "P.S.\t'Tis better to have no moving text at all ....."

ScreenLine[12] = "\t... than to have a \"sideways\" scroller.";

ScreenLine[13] = " \f";

/*

To change or add messages, just replace values of or add to ScreenLine[n]

above.   Each ScreenLine[n] is a separate line.  To change the "page" before

the defined page length is reached, insert a \f character at the end of the

line where you want the break.    Use \" for quotes and \t for tabs in the

message text.

*/

var msgNum = 1;          // set to first message to display

var msgCnt = 13;         // set to number of last message "page" to display.

var typeSpeed = 70;      // the typing rate, in milliseconds. (Higher number is slower)

var pageLen = 5;         // set to page size, usually number of ROWS in TEXTAREA

var delay=typeSpeed;

var r = 0;

var cr="\r\n"

if ("3" <=navigator.appVersion.charAt(0)) {

 var cr="\n"

}

for (x = 1; x<=(msgCnt); x++) {

  ScreenLine[x] = ScreenLine[x] + cr;

}

msg = ScreenLine[1];

function DisplayMsg() {

  if (msg.length <= i || msg.charAt(i) == "\f") {

    r=i;

    i=0;

    ChangeMsg();

  }

  outMsg = outMsg + msg.charAt(i);

  i++;

  if (msg.charAt(i) == "\f" || (lineNo == pageLen && i==msg.length)) {

    delay = 4000; }

  else {

  if (msg.charAt(i) == cr && msg != " "+cr) {

    delay = 2000; }

  else {

    delay = typeSpeed; }

  }

  self.document.forms[0].elements[0].value=outMsg;

  timerDM = setTimeout("DisplayMsg()",delay);

}

function ChangeMsg() {

 msgNum++;

 if (msgCnt < msgNum) {

   msgNum = 1;

 }

 lineNo++;

 if (pageLen < lineNo || msg.charAt(r) == "\f") {

  outMsg=ScreenLine[msgNum].charAt(i);

  i++;

  lineNo = 1;

 }

  msg = ScreenLine[msgNum];

}

function quitDisplay() {

  self.document.forms[0].elements[0].value = "Type yourself a Note today!";

}

// -->

</SCRIPT>

</HEAD>

<BODY Background=../graphics/grayback.jpg onLoad="DisplayMsg()"; onUnload="quitDisplay()">

<center><BR><BR><BR>

<FORM NAME= "msgform" ACTION=" ">

     <TEXTAREA NAME="msgarea" COLS=80 ROWS=5>

     JavaScript (or JScript) Power needed.

     </TEXTAREA>

</FORM>

</center>

</BODY>

</HTML>

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JavaScript That Types In A Textarea