JS Handy Calculator

Alexander Wu Dec 24, 2003

This is a calculator with handy basic functions for use on your site. This calculator has better controls to avoid unwanted reactions to unusual button pressing.


http://www.javascriptsource.com/

The JavaScript Source: Math Related: JS Handy Calculator

Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Command-s). The script is yours!!!

<!-- TWO STEPS TO INSTALL JS HANDY CALCULATOR:

1.  Copy the coding into the HEAD of your HTML document
  2.  Add the last code into the BODY of your HTML document  -->

<HEAD>

<script language="JavaScript"><!-- Start
var value1 = "", value2 = "", value3 = "0"
var value4 = "done", num = 0, mvalue = 0; 
function nkey(i) {
  if (num == 1) { 
     value1 = value2; value2 = value3;
     value3 = "" + i; value4 = "eidt"; num = 2; 
  } else { 
     if (value4 == "done" || value3 + "" == "0")
     { value3 = "" + i; value4 = "eidt"; } 
     else { value3 += "" + i; }
  }
  more(); 
}
function ptkey() {
 if (value4 != "point")  { 
   if (value4 == "done") {
     if (num != 1) { ckey(0); } 
     nkey("0.");
   } else { value3 += "."; more(); }
   value4 = "point"; 
 }
} 
function more() {
 document.cform.V1.value = value1 + " " + value2 + " " + value3;
}
function fkey(j) {
 if (num != 1) {
   value2 = eval(value1 + value2 + value3); value1 = ""; 
   value2 = round(value2); num = 1; value4 = "done";
 }
 value3 = j; more();
}     
function rkey(j) {
 if (num != 1) { if (j == "%") {
     value3 = value3 * 0.01; 
   } 
   if (j == "=") {
     value3 = eval(value1 + value2 + value3); 
     value2 = ""; value1 = ""; num = 0;
   }
   value3 = round(value3); more(); value4 = "done"; 
 }
}
function ckey(k) {
 if (k == 0) { if (value2 != "") 
   { value3 = value2; } else { value3 = "0"; }
   value2 = value1; value1 = "";
   if (num == 2) { num = 1; } else { num = 0; }
 } 
 if (k == 1) {
   value3 = "0"; value2 = ""; value1 = ""; num = 0;
 }
 more(); value4 = "done"; 
}
function mvkey(k) {
 if (num == 0) {
   if (k == "+") { mvalue = mvalue + eval(value3); }
   if (k == "-") { mvalue = mvalue - eval(value3); }
   mvalue = round(mvalue); setmemo(); value4 = "done"; 
 }
}
function mckey(k) {
 if(k == "=") {
   if (num != 1) { ckey(0); }
   nkey(mvalue); value4 = "done"; 
 }
 if (k == "c") { mvalue = 0; setmemo(); } 
}
function setmemo() {
  document.cform.V2.value = "";
  if (mvalue != 0) {
    document.cform.V2.value = "<M> " + mvalue + "; ";
  }
}
function sbkey() {
 value2 = altsb(value2 + ""); 
 value3 = altsb(value3 + ""); more();
} 
function altsb(sb) {
 if (sb == "") { value3 = - eval(value3) + ""; }
 if (sb == "+") { return "-"; }
 if (sb == "-") { return "+"; }
 if (sb == "*") { return "/"; }
 if (sb == "/") { return "*"; }
 return sb; 
}

// END / Many more are available free online -->
</SCRIPT>

<BODY>

<table width="100%" height="350" border="0" align="center" cellpadding="25" cellspacing="1" 
  bgcolor="#ffeecc" class="main0">
  <tr> 
    <td align="center" colspan="2" bgcolor="#FFFFFF">
<table border="0" width="350" height="250" 
      cellpadding="2" bgcolor="#FFCC99">
<form class="liform" name="cform"> 
  <tr>
    <td width="100%" bgcolor="#FFEECC" colspan="6" height="50">
  <table border="0" width="100%" height="100%" 
     cellspacing="0" cellpadding="0" bgcolor="#000080">
        <tr>
          <td width="350" align="right" colspan="2"><nobr>
             <input type=button class="cdbutt" name="V2">
               <input type=button class="cdbutt" name="V1">
        </nobr></td>
        <tr>
          <td width="310" align="center" height="25" bgcolor="#FFEECC">
            <nobr><font face="Arial" size="2"><a style="color: #FFCC99" 
            href="http://www.javascriptsource.com/"> 
            http://www.javascriptsource.com/
            </a></font></nobr></td>
          <td width="40" height="25" bgcolor="#FFEECC">
            <input style="height: 25; border-color: #FFcc99" class="cabutt" type=button value="off" 
            onClick='window.open("http://www.ozwebsite.com/program/scrpt04.php", "_self");'></td>
        </tr>
      </table>
    </td>
  </tr>
  <tr>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="1" onClick="nkey(1)"></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="2" onClick="nkey(2)"></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="3" onClick="nkey(3)"></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="+" onClick='fkey("+")'></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="+/-" onClick="sbkey()"></td>
    <td width="100" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="C" onClick="ckey(1)"></td>
  </tr>
  <tr>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="4" onClick="nkey(4)"></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="5" onClick="nkey(5)"></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="6" onClick="nkey(6)"></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="-" onClick='fkey("-")'></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="M+" onClick='mvkey("+")'></td>
    <td width="100" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="CE" onClick="ckey(0)"></td>
  </tr>
  <tr>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="7" onClick="nkey(7)"></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="8" onClick="nkey(8)"></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="9" onClick="nkey(9)"></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="*" onClick='fkey("*")'></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="M-" onClick='mvkey("-")'></td>
    <td width="100" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="MC" onClick='mckey("c")'></td>
  </tr>
  <tr>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="." onClick="ptkey()" 
    style="font-weight: bold"></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="0" onClick="nkey(0)"></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="%" onClick='rkey("%")'></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="/" onClick='fkey("/")'></td>
    <td width="50" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="M" onClick='mckey("=")'></td>
    <td width="100" bgcolor="#FFEECC" height="50">
<input class="cabutt" type=button value="=" onClick='rkey("=")'></td>  
  </tr></form>
</table>
<BR><BR>

<p><center>
<font face="arial, helvetica" size"-2">Free JavaScripts provided<br>
by <a href="http://javascriptsource.com">The JavaScript Source</a></font>
</center><p>

Did you use this script? Do you like this site? Please link to us!

Leave a Response

(0 comments)

Attention JavaScript Coders

Want some recognition for your scripts? Submit them to JavaScript Source!

Alphabetical Listing

Tutorials

Ajax Tutorials

Ajax

Buttons

Cookies

CSS

Forms

Games

Generators

Image Effects

Math Related

Miscellaneous

Multimedia

Navigation

Page Details

Password

Snippets

Text Effects

Time & Date

User Details

JS Handy Calculator

Leave a Response

Attention JavaScript Coders

Go Deeper