<script language="JavaScript"> <!-- // deklaracja zmiennych var wynik=0, op=0, nowe=0, nowe2=0, done=1, oset=0, kropka, temp; function reset(value) { document.form1.ekran.value = value; wynik = 0, op = 0, nowe = 0, nowe2 = 0; done = 1; oset = 0; } function wspolna(new_temp) { kropka = 1; if(nowe || done) { nowe = 0; done = 0; temp = new_temp; } for(var i=0; i<temp.length; i++) if (temp[i]=='.') kropka=0; } function button(ktory,ktory2) { temp = document.form1.ekran.value; if(ktory2=='.') { wspolna('0'); if(kropka) { temp += ktory2; document.form1.ekran.value = temp; oset = 0; } } if(ktory>=0 && ktory<=9) { wspolna(''); if(temp==0 && kropka==1) temp=''; temp += ktory; document.form1.ekran.value = temp; oset = 1; } if(ktory2=='-' || ktory2=='+' || ktory2=='/' || ktory2=='*') { if(nowe) op = ktory2 else { if(!nowe2) { op = ktory2; wynik = temp; nowe2=1; } else { wynik = eval(wynik + op + temp); op = ktory2; document.form1.ekran.value = wynik; } oset=0; nowe = 1; } } if(ktory2=='1/x' ) { wynik = eval(1 / temp) ; reset(wynik); } if(ktory2=='sqrt') { wynik = Math.sqrt(temp); reset(wynik); } if(ktory2=='exp' ) { wynik = Math.exp(temp) ; reset(wynik); } if(ktory2=='+/-') document.form1.ekran.value = eval(-temp); if(ktory2=='=' && oset && op!='0') reset(eval(wynik + op + temp)); if (ktory2=='C') reset(0); if(document.form1.ekran.value[0] == '.') document.form1.ekran.value = '0' + document.form1.ekran.value; } //--> </script> </p> <center> <form name="form1"> <table bgColor="#430086"> <TBODY> <tr> <td><table bgColor="#430086" border="1" cellPadding="0" cellSpacing="5"> <TBODY> <tr align="middle"> <td colSpan="5"><input name="ekran" value="0" size="20"></td> </tr> <tr align="middle"> <td colSpan="4"><b><font color="#FFFF00">SB Калькулятор</font></b></td> <td><input name="C" onclick="button(11,'C')" type="button" value=" C "></td> </tr> <tr align="middle"> <td><input name="7" onclick="button(7 ,'')" type="button" value=" 7 "></td> <td><input name="8" onclick="button(8 ,'')" type="button" value=" 8 "></td> <td><input name="9" onclick="button(9 ,'')" type="button" value=" 9 "></td> <td><input name="/" onclick="button(11,'/')" type="button" value=" / "></td> <td><input name="sqrt" onclick="button(11,'sqrt')" type="button" value="sqrt"></td> </tr> <tr align="middle"> <td><input name="4" onclick="button(4,'')" type="button" value=" 4 "></td> <td><input name="5" onclick="button(5,'')" type="button" value=" 5 "></td> <td><input name="6" onclick="button(6,'')" type="button" value=" 6 "></td> <td><input name="*" onclick="button(11,'*')" type="button" value=" * "></td> <td><input name="exp" onclick="button(11,'exp')" type="button" value="exp"></td> </tr> <tr align="middle"> <td><input name="1" onclick="button(1,'')" type="button" value=" 1 "></td> <td><input name="2" onclick="button(2,'')" type="button" value=" 2 "></td> <td><input name="3" onclick="button(3,'')" type="button" value=" 3 "></td> <td><input name="-" onclick="button(11,'-')" type="button" value=" - "></td> <td><input name="1/x" onclick="button(11,'1/x')" type="button" value="1/x "></td> </tr> <tr align="middle"> <td><input name="0" onclick="button(0,'')" type="button" value=" 0 "></td> <td><input name="+/-" onclick="button(11,'+/-')" type="button" value=" +/- "></td> <td><input name="." onclick="button(11,'.')" type="button" value=" , "></td> <td><input name="+" onclick="button(11,'+')" type="button" value=" + "></td> <td><input name="=" onclick="button(11,'=')" type="button" value=" = "></td> </tr> </TBODY> </table> </td> </tr> </TBODY> </table> </form> </center>