Untitled

OBLIG 3 - VALUTTKALKULATOR SOM SKA KUNNE KONVERTERE KR, YEN OG EURO OM HVERANDRE
<!DOCTYPE html>
<html>
<head>
    <script src="Assignment03.js"></script>
 </head>
    <body>
        <h1>Valtakalkulator</h1>
        <p id="panel">Skriv kr her:</p>
        <br/>
        <input text id="input_kroner" onkeyup="valutakalkulator()";/>
        <p id="kroner"> Kroner</p><br />
        <p id="yen"> Yen</p><br />
        <p id="euro"> Euro</p><br />

        <p id="panel">Skriv Euro her:</p>
        <input text id="input_euro" onkeyup="Euro_til_kr()";/>
        <p id="euro2"> euro</p>
        <p id="kroner2"> kroner</p>

        <p id="panel">Skriv Yen her:</p>
        <input text id="input_yen" onkeyup="Yen_til_kr()";/>
        <p id="yen2"> yen</p>
        <p id="kroner3"> kroner</p>

        <h1>Avansert valuta</h1>
        <br />
        <select id="myDropdown">
            <option>Euro</option>
            <option>Yen</option>
        </select>
        <input type="button" id="kanpp" onclick="getIndex();" value="Knapp" />

    	<p id="panel">Skriv kr her:</p>
        <br/>
        <input text id="input_kroner4";/>
        <p id="kroner4"> Kroner</p><br />
        <p id="yen3"> Yen</p><br />
        <p id="euro3"> Euro</p><br />

    </body>
</html>

function valutakalkulator(){
    var kroner = document.getElementById("input_kroner").value;
    document.getElementById("kroner").innerHTML = "Du skrev: " + kroner + " kroner";

    var yen = krTilYen(kroner);
    document.getElementById("yen").innerHTML = yen + " yen <br />";

    var euro = krTilEuro(kroner);
    document.getElementById("euro").innerHTML = euro + " euro <br />";
}

function Euro_til_kr(){
    var euro =
    document.getElementById("input_euro").value;
    document.getElementById("euro2").innerHTML = "Du skrev: " + euro + " euro";

    var kroner = EuroTilkr(euro);
    document.getElementById("kroner2").innerHTML = kroner + " kroner <br />
}

function Yen_til_kr(){
    var yen =
    document.getElementById("input_yen").value;
    document.getElementById("yen2").innerHTML = "Du skriv: " + yen + " yen";

    var kroner = YenTilkr(yen);
    document.getElementById("kroner3").innerHTML = kroner + " kroner <br />
}

function krTilYen(kr){
    var yen = kr*107;
    return yen;
}

function krTilEuro(kr){
    var euro = kr*0.12;
    return euro;
}

function EuroTilkr(euro){
    var kr = euro*9.26;
    return kr;
}
function YenTilkr(yen){
    var kr = yen/107;
    return kr;
}

function getIndex(){
    var svar = document.getElementById("myDropdown").selectedIndex;
    //window.prompt("Svaret er:"+svar);
    if(svar==0){
         var kroner = document.getElementById("input_kroner4").value;
    var euro = krTilEuro(kroner);
    document.getElementById("euro3").innerHTML = euro + " euro <br />";
    }
    if(svar==1){
         var kroner = document.getElementById("input_kroner4").value;
    var yen = krTilYen(kroner);
    document.getElementById("yen3").innerHTML = yen + " yen <br />";
    } //hvis 0 gjør euro og hvis 1 gjør kroner
}