<HTML>
<HEAD>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-2">
<!-- Skrypt pochodzi z ksiki "101 praktycznych skryptw"  -->
<!-- autor: Marcin Lis    e-mail: 101scripts@marcinlis.com  -->
<SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript">
<!-- Ukrycie przed przegldarkami nie obsugujcymi JavaScriptu
var wyrazenie = "";
var nowe = true;
function wprowadz (wartosc){
 var wyswietlacz = document.kalkulator.wyswietlacz;
 if (nowe){
         nowe = !nowe;
         wyswietlacz.value = "";
 }
 wyswietlacz.value += wartosc;
 wyrazenie += wartosc;
}
function dzialanie (wartosc){
 var wyswietlacz = document.kalkulator.wyswietlacz;
 wyswietlacz.value = "";
 wyrazenie += wartosc;
}
function oblicz (){
 var wyswietlacz = document.kalkulator.wyswietlacz;
 if (wyrazenie != "");{
         wyswietlacz.value = eval (wyrazenie);
         wyrazenie = wyswietlacz.value;
         nowe = true;
 }
}
function zeruj(){
 wyrazenie = "";
 document.kalkulator.wyswietlacz.value = "";
}
function kwadrat(){
 if (wyrazenie != ""){
         document.kalkulator.wyswietlacz.value = wyrazenie * wyrazenie;
         wyrazenie = document.kalkulator.wyswietlacz.value;
         nowe = true;
 }
}
// Koniec kodu JavaScript -->
</SCRIPT>
<STYLE>
.MyNumButton{width:30px}
</STYLE>
</HEAD>
<BODY>
<BR><BR>
<FORM NAME = "kalkulator">
<INPUT TYPE = "text"
 STYLE = "width:135px"
 NAME = "wyswietlacz"
 SIZE = "16">
<BR><BR>
<TABLE BORDER = "0">
<TR><TD>
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "7"
 VALUE = "7"
 onClick = "wprowadz(7)">
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "8"
 VALUE = "8"
 onClick = "wprowadz(8)">
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "9"
 VALUE = "9"
 onClick = "wprowadz(9)">
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "/"
 VALUE = "/ "
 onClick = "dzialanie('/')">
</TD></TR><TR><TD>
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "4"
 VALUE = "4"
 onClick = "wprowadz(4)">
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "5"
 VALUE = "5"
 onClick = "wprowadz(5)">
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "6"
 VALUE = "6"
 onClick = "wprowadz(6)">
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "*"
 VALUE = "*"
 onClick = "dzialanie('*')">
</TD></TR><TR><TD>
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "1"
 VALUE = "1"
 onClick = "wprowadz(1)">
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "2"
 VALUE = "2"
 onClick = "wprowadz(2)">
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "3"
 VALUE = "3"
 onClick = "wprowadz(3)">
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "-"
 VALUE = "-"
 onClick = "dzialanie('-')">
</TD></TR><TR><TD>
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "0"
 VALUE = "0"
 onClick = "wprowadz(0)">
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "!"
 VALUE = "^2"
 onClick = "kwadrat('^2')">
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "c"
 VALUE = "c"
 onClick = "zeruj()">
<INPUT TYPE = "button"
 CLASS = "MyNumButton"
 NAME = "+"
 VALUE = "+"
 onClick = "dzialanie('+')">
</TD></TR><TR><TD>
<INPUTTYPE = "button"
 STYLE = "width:130px"
 NAME = "="
 VALUE = "="
 onClick = "oblicz()">
</TR></TD>
</TABLE>
</FORM>
</BODY>
</HTML>
