JavaScript need help

[robeng]

Hi! I have a problem with my code. We got a task to do a clock. With year, month, time etc. I got everything to work exept for one thing. It does't show the month, it shows undefined. I have created a month array called "månadLista" with all of the month in it. And then i have a variable called månad with equals the month of my computer. So what i have done is that i want to write out the month. I have done it like this månadLista[månad]. So it calles the array "månadLista" and for the item in the list witch is månad. Here is all of my code:

//Variabler:
var månadLista = ["Januari", "Februari", "Mars", "April", "Juni", "July", "Augusti", "September", "Oktober", "November", "December"];
//Functioner
function sverigesTid() {
    var datum = new Date();
    var årtal = datum.getFullYear();
    var månad = datum.getMonth();
    var dag = datum.getDate();
    var timmar = datum.getHours();
    var minuter = datum.getMinutes();
    var sekunder = datum.getSeconds();
    document.getElementById("stockholmDatum").innerHTML = årtal + "-" + månadLista[månad] + "-" + dag;
    document.getElementById("stockholmTid").innerHTML = timmar + ":" + minuter + ":" + sekunder;
}
function londonTid() {
    var datum = new Date();
    var årtal = datum.getFullYear();
    var månad = datum.getMonth();
    var dag = datum.getDay();
    var timmar = datum.getHours();
    var minuter = datum.getMinutes();
    var sekunder = datum.getSeconds();
    document.getElementById("londonDatum").innerHTML = årtal + "-" + månadLista[månad] + "-" + dag;
    document.getElementById("londonTid").innerHTML = (timmar-1) + ":" + minuter + ":" + sekunder;
}
//Kalla på functioner
setInterval("sverigesTid()" , 1000);
setInterval("londonTid()" , 1000);

So in short. How do i fix so that the month get displayed and not undefined at månadLista[månad].

Thanks in advance!

[Guest]

Your forgot the month of Mai, or May. 

You only have 11 months listed and it's the 12th month. 

[robeng]

6 minutes ago, fpo said:

Your forgot the month of Mai, or May. 

You only have 11 months listed and it's the 12th month. 

Ohh... Thanks!

[Niemand]

Is that Swedish? It looks cool.

[robeng]

On 2016-12-14 at 5:30 PM, Niemand said:

Is that Swedish? It looks cool.

Yup!