164 lines
3.1 KiB
JavaScript
164 lines
3.1 KiB
JavaScript
<!-- Original: Steve Dulaney -->
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<!-- Web Site: http://www.hmhd.com/steve -->
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<!-- This script and many more are available free online at -->
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<!-- The JavaScript Source!! http://javascript.internet.com -->
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<!-- Begin
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var Memory = 0;
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var Number1 = "";
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var Number2 = "";
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var NewNumber = "blank";
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var opvalue = "";
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function Display(displaynumber) {
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document.calculator.answer.value = displaynumber;
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}
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function MemoryClear() {
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Memory = 0;
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//document.calculator.mem.value = "";
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document.calculator.mem.style.color = "#BBB";
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}
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function MemoryRecall(answer) {
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if(NewNumber != "blank") {
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Number2 += answer;
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} else {
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Number1 = answer;
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}
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NewNumber = "blank";
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Display(answer);
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}
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function MemorySubtract(answer) {
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Memory = Memory - eval(answer);
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}
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function MemoryAdd(answer) {
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Memory = Memory + eval(answer);
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document.calculator.mem.style.color = "#000";
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//document.calculator.mem.value = "M";
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NewNumber = "blank";
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}
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function ClearCalc() {
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Number1 = "";
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Number2 = "";
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NewNumber = "blank";
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Display("");
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}
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function Backspace(answer) {
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answerlength = answer.length;
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answer = answer.substring(0, answerlength - 1);
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if (Number2 != "") {
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Number2 = answer.toString();
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Display(Number2);
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} else {
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Number1 = answer.toString();
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Display(Number1);
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}
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}
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function CECalc() {
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Number2 = "";
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NewNumber = "yes";
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Display("");
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}
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function CheckNumber(answer) {
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if(answer == ".") {
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Number = document.calculator.answer.value;
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if(Number.indexOf(".") != -1) {
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answer = "";
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}
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}
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if(NewNumber == "yes") {
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Number2 += answer;
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Display(Number2);
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}
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else {
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if(NewNumber == "blank") {
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Number1 = answer;
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Number2 = "";
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NewNumber = "no";
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}
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else {
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Number1 += answer;
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}
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Display(Number1);
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}
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}
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function AddButton(x) {
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if(x == 1) EqualButton();
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if(Number2 != "") {
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Number1 = parseFloat(Number1) + parseFloat(Number2);
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}
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NewNumber = "yes";
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opvalue = '+';
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Display(Number1);
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}
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function SubButton(x) {
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if(x == 1) EqualButton();
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if(Number2 != "") {
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Number1 = parseFloat(Number1) - parseFloat(Number2);
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}
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NewNumber = "yes";
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opvalue = '-';
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Display(Number1);
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}
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function MultButton(x) {
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if(x == 1) EqualButton();
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if(Number2 != "") {
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Number1 = parseFloat(Number1) * parseFloat(Number2);
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}
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NewNumber = "yes";
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opvalue = '*';
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Display(Number1);
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}
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function DivButton(x) {
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if(x == 1) EqualButton();
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if(Number2 != "") {
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Number1 = parseFloat(Number1) / parseFloat(Number2);
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}
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NewNumber = "yes";
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opvalue = '/';
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Display(Number1);
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}
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function SqrtButton() {
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Number1 = Math.sqrt(Number1);
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NewNumber = "blank";
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Display(Number1);
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}
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function PercentButton() {
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if(NewNumber != "blank") {
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Number2 = eval(Number1+opvalue+Number2);
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Number2 = Number2 * .01;
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NewNumber = "blank";
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Display(Number2);
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}
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}
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function RecipButton() {
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Number1 = 1/Number1;
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NewNumber = "blank";
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Display(Number1);
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}
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function NegateButton() {
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Number1 = parseFloat(-Number1);
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NewNumber = "no";
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Display(Number1);
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}
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function EqualButton(x) {
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if(opvalue == '+') AddButton(0);
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if(opvalue == '-') SubButton(0);
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if(opvalue == '*') MultButton(0);
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if(opvalue == '/') DivButton(0);
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if (x==0) NewNumber="blank";
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//if (typeof(x)!="undefined" && typeof(parentField)!="undefined")
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// if (x==0) if (getOpenerObj(parentField)) getOpenerObj(parentField).value=Number1;
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Number2 = "";
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opvalue = "";
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}
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// End -->
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