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Kalkulačka-běžná
Normální položka
Zobrazeno: 16956
Popis:
Klasická kalkulačka.
Funkčnost:
IE 5.5 a vyššie
Hodnocení: ***
<form name="kalkulacka"> <INPUT TYPE="text" NAME="display" SIZE="25"><br><br> <TABLE CELLSPACING="2" CELLPADDING="2" BORDER="1"> <tr> <TD><INPUT TYPE="BUTTON" VALUE = " 1 " onClick="pocitej('1')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " 2 " onClick="pocitej('2')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " 3 " onClick="pocitej('3')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " + " onClick="pocitej('+')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " C " onClick="pocitej('C')"></TD> </tr> <tr> <TD><INPUT TYPE="BUTTON" VALUE = " 4 " onClick="pocitej('4')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " 5 " onClick="pocitej('5')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " 6 " onClick="pocitej('6')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " - " onClick="pocitej('-')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = "CE" onClick="pocitej('CE')"></TD> </tr> <tr> <TD><INPUT TYPE="BUTTON" VALUE = " 7 " onClick="pocitej('7')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " 8 " onClick="pocitej('8')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " 9 " onClick="pocitej('9')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " * " onClick="pocitej('*')"></TD> </tr> <tr> <TD><INPUT TYPE="BUTTON" VALUE = " 0 " onClick="pocitej('0')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " . " onClick="pocitej('.')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " = " onClick="pocitej('=')"></TD> <TD><INPUT TYPE="BUTTON" VALUE = " / " onClick="pocitej('/')"></TD> </tr> </table> </form> <SCRIPT LANGUAGE="JavaScript"> var vysledek = 0 var disp=""; var operator=0; function smazat() { disp=" "; document.kalkulacka.display.value=0; } function pocitej(stisknuto) { switch(stisknuto){ case "C": vysledek=0; smazat(); break; case "CE":smazat(); break; case "+": vysledek=eval(document.kalkulacka.display.value); operator=1; smazat(); break; case "-": vysledek=eval(document.kalkulacka.display.value); operator=2; smazat(); break; case "*": vysledek=eval(document.kalkulacka.display.value); operator=3; smazat(); break; case "/": vysledek=eval(document.kalkulacka.display.value); operator=4; smazat(); break; case "=": switch(operator){ case 1: vysledek+=eval(document.kalkulacka.display.value); break; case 2: vysledek-=eval(document.kalkulacka.display.value); break; case 3: vysledek*=eval(document.kalkulacka.display.value); break; case 4: vysledek/=eval(document.kalkulacka.display.value); break; } smazat(); document.kalkulacka.display.value=vysledek; vysledek=0; break; default: disp+=stisknuto; document.kalkulacka.display.value=disp; break; } } </script>