hvis du ikke kan finde ud af at åbne windows lommeregner så er her en lang kildekode i javascript til en lomme regner..
<html>
<head>
<title>Lommeregner</title>
<meta name="GENERATOR" content="Microsoft FrontPage 3.0">
<base target="indhold">
</head>
<body id="Me">
<h3>Java lommeregner</h3>
<script LANGUAGE="JavaScript" FOR="window" EVENT="onload">
initCalculator();
</script>
<script LANGUAGE="JavaScript">
public_description = new createCalculator();
var inScriptlet = (typeof(window.external.version) == "string")
var m_memValue = 0;
var m_stackValue = 0;
var m_operator = "";
var m_operatorSetLast = false;
var m_justCleared = true;
var m_buttonColor = "gray";
var m_hiliteColor = "black";
var m_buttonFont = "Tahoma";
var m_backColor = "#090909";
var m_textColor = "white";
var m_current = null;
var m_numHistoryElems = 5;
var m_history = new Array( 10 );
var m_timeoutID = null;
function createCalculator()
{
this.get_Value = getCurrentValue;
this.put_Value = setCurrentValue;
this.get_BackColor = getBackColor;
this.put_BackColor = setBackColor;
this.get_ButtonColor = getButtonColor;
this.put_ButtonColor = setButtonColor;
this.get_HiliteColor = getHiliteColor;
this.put_HiliteColor = setHiliteColor;
this.get_TextColor = getTextColor;
this.put_TextColor = setTextColor;
this.get_ButtonFont = getButtonFont;
this.put_ButtonFont = setButtonFont;
this.evaluate = evaluate;
this.event_OnChange = "";
this.event_OnEvaluate = "";
}
function initCalculator()
{
setButtonColor( m_buttonColor );
setBackColor( m_backColor );
setButtonFont( m_buttonFont );
initHistory();
}
///////////////////////////////////////////////////////////////////////////
// OPERATION FUNCTIONS
///////////////////////////////////////////////////////////////////////////
function percent()
{
//HACK: Don't call setCurrentValue, or the Change event will fire twice
currentValue.value = eval( getCurrentValue() ) / 100;
evaluate();
}
function changeSign()
{
setCurrentValue( -1 * eval( getCurrentValue() ) );
}
function invert()
{
setCurrentValue( 1 / eval( getCurrentValue() ) );
}
function squareroot()
{
setCurrentValue( Math.sqrt( getCurrentValue() ) );
}
function setOperator(newOp)
{
if( m_operator != 0 )
evaluate();
m_operator = newOp;
m_stackValue = eval( currentValue.value );
m_operatorSetLast = true;
}
function evaluate()
{
tempValue = eval( currentValue.value );
if( m_operator == 1 )
result = m_stackValue + tempValue;
else
if( m_operator == 2 )
result = m_stackValue - tempValue;
else
if( m_operator == 3 )
result = m_stackValue * tempValue;
else
if( m_operator == 4 )
{
if( tempValue != 0 )
result = m_stackValue / tempValue;
else
result = "NaN";
}
else
return;
m_operator = 0;
m_justCleared = true;
setCurrentValue( result );
if( inScriptlet )
window.external.raiseEvent( "event_OnEvaluate", window.document );
addToHistory( result );
}
///////////////////////////////////////////////////////////////////////////
// MEMORY FUNCTIONS
///////////////////////////////////////////////////////////////////////////
function setMemIndicator( memValue )
{
if( memValue == 0 )
MEMINDICATOR.innerText = " "
else
MEMINDICATOR.innerText = "M"
}
function memSet(number)
{
m_memValue = number;
setMemIndicator( m_memValue );
}
function memRecall()
{
setCurrentValue( m_memValue );
}
function memPlus(number)
{
memSet( eval( m_memValue ) + eval( number ) );
}
function clearValue(everything)
{
setCurrentValue(0);
m_stackValue = 0;
setOperator(0);
if( everything )
{
memSet(0);
initHistory();
}
m_justCleared = 0;
}
///////////////////////////////////////////////////////////////////////////
// PROPERTY FUNCTIONS AND UTILITIES
///////////////////////////////////////////////////////////////////////////
function redoButtons()
{
var col;
var ct;
col = document.all.tags("TD");
for( ct = 0; ct < col.length; ++ct )
if( isCalculatorButton( col[ct] ) )
{
col[ct].style.backgroundColor = m_buttonColor;
col[ct].style.color = m_textColor;
}
}
function getCurrentValue()
{
return currentValue.value;
}
function setCurrentValue( newValue )
{
currentValue.value = newValue;
if( inScriptlet )
window.external.raiseEvent( "event_OnChange", window.document );
}
function getBackColor()
{
return m_backColor;
}
function setBackColor(newColor)
{
m_backColor = newColor;
Me.style.backgroundColor = m_backColor;
}
function getButtonColor()
{
return m_buttonColor;
}
function setButtonColor(newColor)
{
m_buttonColor = newColor;
redoButtons();
}
function getHiliteColor()
{
return m_hiliteColor;
}
function setHiliteColor(newColor)
{
m_hiliteColor = newColor;
}
function getTextColor()
{
return m_textColor;
}
function setTextColor(newColor)
{
m_textColor = newColor;
redoButtons();
}
function getButtonFont()
{
return m_buttonFont;
}
function setButtonFont(newFont)
{
m_buttonFont = newFont;
Me.style.fontFamily = m_buttonFont;
}
function postNumber(number)
{
if( !m_operatorSetLast && !m_justCleared )
currentValue.value = currentValue.value + number;
else
currentValue.value = number;
m_operatorSetLast = false;
m_justCleared = false;
if( inScriptlet )
window.external.raiseEvent( "event_OnChange", window.document );
}
function postDot()
{
if( isNaN( currentValue.value + "." ) )
return;
postNumber(".");
}
///////////////////////////////////////////////////////////////////////////
// HISTORY FUNCTIONS
///////////////////////////////////////////////////////////////////////////
function initHistory()
{
var ct;
for( ct = m_history.length - 1; ct >= 0; --ct )
{
if( ct % 2 == 0 )
m_history[ ct ] = "";
else
m_history[ ct ] = "historyPick" + ( (ct+1) / 2 );
}
if( inScriptlet )
window.external.setContextMenu( m_history );
}
function historyPick1()
{
setCurrentValue( m_history[ 2 * 0 ] );
}
function historyPick2()
{
setCurrentValue( m_history[ 2 * 1 ] );
}
function historyPick3()
{
setCurrentValue( m_history[ 2 * 2 ] );
}
function historyPick4()
{
setCurrentValue( m_history[ 2 * 3 ] );
}
function historyPick5()
{
setCurrentValue( m_history[ 2 * 4 ] );
}
function addToHistory( result )
{
var ct;
// Bubble down the previous history elements
for( ct = m_history.length - 1; ct >= 2; --ct )
{
if( ct % 2 == 0 )
m_history[ ct ] = m_history[ ct-2 ];
else
m_history[ ct ] = "historyPick" + ( (ct+1) / 2 );
}
// Add the new one
m_history[ 0 ] = result;
m_history[ 1 ] = "historyPick1";
if( inScriptlet )
// Looks like we need to re-set the context menu
window.external.setContextMenu( m_history );
}
///////////////////////////////////////////////////////////////////////////
// UTILITY FUNCTIONS
///////////////////////////////////////////////////////////////////////////
function isCalculatorButton( item )
{
return ( item.id.substring(0, 3) == "Btn" );
}
function isOperator( val )
{
if( val == "/" || val == "*" || val == "+" || val == "-" )
return true;
return false;
}
function handleOperator( op )
{
if( op == "*" )
setOperator( 3 );
else
if( op == "/" )
setOperator( 4 );
else
if( op == "+" )
setOperator( 1 );
else
if( op == "-" )
setOperator( 2 );
}
///////////////////////////////////////////////////////////////////////////
// EVENT HANDLERS
///////////////////////////////////////////////////////////////////////////
function doInput( inText )
{
if( !isNaN( inText ) )
postNumber( inText );
else
if( inText == "CE" )
clearValue( true );
else
if( inText == "C" )
clearValue( false );
else
if( inText == "MC" )
memSet( 0 );
else
if( inText == "sqrt" )
squareroot();
else
if( inText == "MR" )
memRecall();
else
if( inText == "MS" )
memSet( getCurrentValue() );
else
if( inText == "1/x" )
invert();
else
if( inText == "." )
postDot();
else
if( inText == "=" )
evaluate();
else
if( inText == "M+" )
memPlus( getCurrentValue() );
else
if( inText == "%" )
percent();
else
if( inText == "+/-" )
changeSign();
else
if( isOperator( inText ) )
handleOperator( inText );
}
function handleClick()
{
var current = window.event.srcElement;
// Return if not on an element
if( current == null )
return;
// Return if not a "button"
if( !isCalculatorButton( current ) )
return;
// Draw "depressed"
current.style.backgroundColor = m_hiliteColor;
current.style.color = m_textColor;
// Do the right thing
doInput( current.innerText );
// Clean up
m_current = current;
// change the button's color back to not-depressed in 75 milliseconds
m_timeoutID = setTimeout( "resetButtonColor( m_current, m_textColor, m_buttonColor );", 75 );
}
function resetButtonColor( item, newColor, newBackColor )
{
item.style.color = newColor;
item.style.backgroundColor = newBackColor;
clearTimeout( m_timeoutID );
}
function handleMouseOver()
{
var hotButton = window.event.srcElement;
if( isCalculatorButton( hotButton ) )
{
hotButton.style.color = m_hiliteColor;
}
}
function handleMouseOut()
{
var hotButton = window.event.srcElement;
if( isCalculatorButton( hotButton ) )
{
hotButton.style.color = m_textColor;
}
}
function filterKeys()
{
var keycode = window.event.keyCode;
// Force the focus to be inside the textbox for keystrokes to work. This solves a couple of problems.
currentValue.focus();
if( keycode == 46 )
{
// Only allow a "." if there isn't already one
if( getCurrentValue().indexOf( "." ) != -1 )
window.event.returnValue = false;
}
else
if( keycode == 43 )
doInput( "+" );
else
if( keycode == 45 )
doInput( "-" );
else
if( keycode == 42 )
doInput( "*" );
else
if( keycode == 47 )
doInput( "/" );
else
if( keycode == 61 )
doInput( "=" );
if( ( keycode >= 48 && keycode <= 57 ) || keycode == 46 )
{
if( m_operatorSetLast || m_justCleared )
currentValue.value = "";
m_operatorSetLast = false;
m_justCleared = false;
}
else
window.event.returnValue = false;
// Slight inconsistency here -- we're firing the event BEFORE the value has actually changed.
// But it's changing immediately thereafter. Hmmm...
if( inScriptlet && window.event.returnValue )
window.external.raiseEvent( "event_OnChange", window.document );
}
</script>
<table CELLSPACING="1" CELLPADDING="1" BORDER="0" WIDTH="100" onclick="handleClick()" onmouseover="handleMouseOver()" onmouseout="handleMouseOut()" onkeypress="filterKeys()">
<tr>
<td ID="TxtValue" ALIGN="CENTER" VALIGN="CENTER" COLSPAN="6" HEIGHT="13%"><input NAME="currentValue" VALUE="0" size="20"></td>
</tr>
<tr>
<td WIDTH="59%" ID="LblM" ALIGN="CENTER" COLSPAN="4" HEIGHT="19%"><b><span ID="MEMINDICATOR"></span></b></td>
<td WIDTH="20%" ID="BtnCE" ALIGN="CENTER" HEIGHT="19%">CE</td>
<td WIDTH="20%" ID="BtnC" ALIGN="CENTER" HEIGHT="19%">C</td>
</tr>
<tr>
<td WIDTH="20%" ID="BtnMC" ALIGN="CENTER" HEIGHT="17%">MC</td>
<td WIDTH="16%" ID="Btn7" ALIGN="CENTER" HEIGHT="17%">7</td>
<td WIDTH="16%" ID="Btn8" ALIGN="CENTER" HEIGHT="17%">8</td>
<td WIDTH="16%" ID="Btn9" ALIGN="CENTER" HEIGHT="17%">9</td>
<td WIDTH="16%" ID="BtnDiv" ALIGN="CENTER" HEIGHT="17%">/</td>
<td WIDTH="16%" ID="BtnSqrt" ALIGN="CENTER" HEIGHT="17%">sqrt</td>
</tr>
<tr>
<td WIDTH="20%" ID="BtnMR" ALIGN="CENTER" HEIGHT="17%">MR</td>
<td WIDTH="16%" ID="Btn4" ALIGN="CENTER" HEIGHT="17%">4</td>
<td WIDTH="16%" ID="Btn5" ALIGN="CENTER" HEIGHT="17%">5</td>
<td WIDTH="16%" ID="Btn6" ALIGN="CENTER" HEIGHT="17%">6</td>
<td WIDTH="16%" ID="BtnMult" ALIGN="CENTER" HEIGHT="17%">*</td>
<td WIDTH="16%" ID="BtnPercent" ALIGN="CENTER" HEIGHT="17%">%</td>
</tr>
<tr>
<td WIDTH="20%" ID="BtnMS" ALIGN="CENTER" HEIGHT="17%">MS</td>
<td WIDTH="16%" ID="Btn1" ALIGN="CENTER" HEIGHT="17%">1</td>
<td WIDTH="16%" ID="Btn2" ALIGN="CENTER" HEIGHT="17%">2</td>
<td WIDTH="16%" ID="Btn3" ALIGN="CENTER" HEIGHT="17%">3</td>
<td WIDTH="16%" ID="BtnSubtract" ALIGN="CENTER" HEIGHT="17%">-</td>
<td WIDTH="16%" ID="BtnInvert" ALIGN="CENTER" HEIGHT="17%">1/x</td>
</tr>
<tr>
<td WIDTH="20%" ID="BtnMPlus" ALIGN="CENTER" HEIGHT="17%">M+</td>
<td WIDTH="16%" ID="Btn0" ALIGN="CENTER" HEIGHT="17%">0</td>
<td WIDTH="16%" ID="BtnChangeSign" ALIGN="CENTER" HEIGHT="17%">+/-</td>
<td WIDTH="16%" ID="BtnDot" ALIGN="CENTER" HEIGHT="17%">.</td>
<td WIDTH="16%" ID="BtnAdd" ALIGN="CENTER" HEIGHT="17%">+</td>
<td WIDTH="16%" ID="BtnEquals" ALIGN="CENTER" HEIGHT="17%">=</td>
</tr>
</table>
<font color=yellow size=3 face=impact></font>
</body>
</html>
Slettet bruger
Ny bruger
Nybegynder
Opret
Preview
