Kalkulačka

<form name="Calc" id="Calc"><table cellspacing="" cellpadding="" border="4" align="center" width="" summary=""><tbody><tr><td><input type="text" name="Input" size="16"><br></td></tr><tr><td><input type="button" name="one" value=" 1 " onclick="Calc.Input.value += '1'"> <input type="button" name="two" value=" 2 " onclick="Calc.Input.value += '2'"> <input type="button" name="three" value=" 3 " onclick="Calc.Input.value += '3'"> <input type="button" name="plus" value=" + " onclick="Calc.Input.value += ' + '"><br><input type="button" name="four" value=" 4 " onclick="Calc.Input.value += '4'"> <input type="button" name="five" value=" 5 " onclick="Calc.Input.value += '5'"> <input type="button" name="six" value=" 6 " onclick="Calc.Input.value += '6'"> <input type="button" name="minus" value=" - " onclick="Calc.Input.value += ' - '"><br><input type="button" name="seven" value=" 7 " onclick="Calc.Input.value += '7'"> <input type="button" name="eight" value=" 8 " onclick="Calc.Input.value += '8'"> <input type="button" name="nine" value=" 9 " onclick="Calc.Input.value += '9'"> <input type="button" name="times" value=" x " onclick="Calc.Input.value += ' * '"><br><input type="button" name="clear" value=" c " onclick="Calc.Input.value = ''"> <input type="button" name="zero" value=" 0 " onclick="Calc.Input.value += '0'"> <input type="button" name="DoIt" value=" = " onclick="Calc.Input.value = eval(Calc.Input.value)"> <input type="button" name="div" value=" / " onclick="Calc.Input.value += ' / '"><br></td></tr></tbody></table></form>