Standard Calculator:

Code:

calculator.js

Highlight

function imageArray(length,imageWidth,imageHeight){

this.length=length

for (i=0;i<length;i++){this[i]=new Image(imageWidth,imageHeight)}

}

if (parseInt(navigator.appVersion.substring(0,1))>=3) {

led=new imageArray(13, 15, 20)

led[0].src="images/calc/0.gif"

led[1].src="images/calc/1.gif"

led[2].src="images/calc/2.gif"

led[3].src="images/calc/3.gif"

led[4].src="images/calc/4.gif"

led[5].src="images/calc/5.gif"

led[6].src="images/calc/6.gif"

led[7].src="images/calc/7.gif"

led[8].src="images/calc/8.gif"

led[9].src="images/calc/9.gif"

led[10].src="images/calc/blank.gif"

led[11].src="images/calc/minus.gif"

led[12].src="images/calc/decimal.gif"

var leddisplay=""

var totalled="OFF"

var added="OFF"

var firstnum=null

var signid=""

}

function pushed(buttonid) {

if (parseInt(navigator.appVersion.substring(0,1))>=3) {

if (buttonid=='c') {signid=""; firstnum=null; leddisplay=""; totalled=="OFF"; for (i=1; i<=9; i++) {document.images["led"+i].src=led[10].src}}

if (buttonid=='.') {var decimalonoff="ON"; for (i=0; i<leddisplay.length; i++) {if (leddisplay.charAt(i)==".") {decimalonoff="OFF"}}; if (decimalonoff!="OFF") {if (totalled=="ON") {leddisplay=buttonid; totalled="OFF"; firstnum=null} else {leddisplay=leddisplay+buttonid}}};

if (buttonid=='+') {

signid="+"

if (leddisplay!=""&&totalled!="ON") {if (firstnum!=null) {leddisplay=parseFloat(firstnum)+parseFloat(leddisplay)}; firstnum=leddisplay; added="ON"}

if (leddisplay!=""&&totalled=="ON") {added="ON"; totalled="OFF"}

}

if (buttonid=='-') {

signid="-"

if (leddisplay!=""&&totalled!="ON") {if (firstnum!=null) {leddisplay=parseFloat(firstnum)-parseFloat(leddisplay)}; firstnum=leddisplay; added="ON"}

if (leddisplay!=""&&totalled=="ON") {added="ON"; totalled="OFF"}

}

if (buttonid=='*') {

signid="*"

if (leddisplay!=""&&totalled!="ON") {if (firstnum!=null) {leddisplay=parseFloat(firstnum)*parseFloat(leddisplay)}; firstnum=leddisplay; added="ON"}

if (leddisplay!=""&&totalled=="ON") {added="ON"; totalled="OFF"}

}

if (buttonid=='/') {

signid="/"

if (leddisplay!=""&&totalled!="ON") {if (firstnum!=null) {leddisplay=parseFloat(firstnum)/parseFloat(leddisplay)}; firstnum=leddisplay; added="ON"}

if (leddisplay!=""&&totalled=="ON") {added="ON"; totalled="OFF"}

}

if (buttonid!='.'&&buttonid!='c'&&buttonid!='/'&&buttonid!='*'&&buttonid!='-'&&buttonid!='+'&&buttonid!='total') {

if (totalled=="ON") {leddisplay=buttonid; totalled="OFF"; firstnum=null} else {leddisplay=leddisplay+buttonid}

}

if (buttonid=='total') {

if (leddisplay!=""&&totalled!="ON") {

if (signid=="+") {leddisplay=parseFloat(firstnum)+parseFloat(leddisplay)}

if (signid=="-") {leddisplay=parseFloat(firstnum)-parseFloat(leddisplay)}

if (signid=="*") {leddisplay=parseFloat(firstnum)*parseFloat(leddisplay)}

if (signid=="/") {leddisplay=parseFloat(firstnum)/parseFloat(leddisplay)}

firstnum=leddisplay; totalled="ON"

}

leddisplay=""+leddisplay

if (leddisplay.charAt(0)=="0") {leddisplay=leddisplay.substring(1,leddisplay.length)}

if (leddisplay.length>=10) {

if (totalled=="ON") {

if (leddisplay.indexOf(".")!=-1) {

leddisplayrounded=leddisplay.charAt(9)+"."+leddisplay.substring(10,leddisplay.length)

leddisplay=leddisplay.substring(0,8)+Math.round(leddisplayrounded)

} else {leddisplay="."; firstnum=null; signid=""}

}

leddisplay=leddisplay.substring(0,9)

}

if (leddisplay!="") {

var ledid=10-leddisplay.length

for (i=1; i<=9; i++) {document.images["led"+i].src=led[10].src}

for (i=0; i<leddisplay.length; i++) {

if (leddisplay.charAt(i)==".") {document.images["led"+ledid].src=led[12].src} else {

if (leddisplay.charAt(i)=="-") {document.images["led"+ledid].src=led[11].src}

else {document.images["led"+ledid].src=led[leddisplay.charAt(i)].src}

}

ledid=ledid+1

}

if (added=="ON") {leddisplay=""; added="OFF"}

}

Place in the <HEAD>: Place in the <BODY>:

Highlight