Selectbox error

I have a selectbox and the user can choose languages through onChange ();

Now, this does not work. I get a JavaScript error, but do not know why.

HTML Code:

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<form class="languageSwitch" name="form1" action="">
              <select class="taalKeuze" name="select1" onchange="languageChange();">
                  <option value="NL" selected="selected"> Dutch - EN </ option>
                  <option value="UK"> English - UK </ option>
                  <option value="DE"> Deutsch - DE </ option>
              </ select>
          </ form>

---

JavaScript

Code:

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<script type="text/javascript">
      Change language function () (
       
          if (document.form1.select1.value == NL)
              window.location = 'default.php';
           
          else if (document.form1.select1.value == UK)
              window.location = 'default uk.php';
               
          else if (document.form1.select1.value == DE)
              window.location = 'default de.php';
       
      )
  </ script>

---

The error: 'EN' is not defined
Anyone for help ?? :crybaby:

Edit / So when I EN and DE, etc. in a varriabele continued, it was error away but it still does not work. When I use the letters in the value changed the numbers. 1, 2, 3 everything was suddenly so. Why does it happens with numbers and letters ?

It is already solved ;)

Because the text in quotation marks should post. Now the variables.

Code:

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if (document.form1.select1.value == NL)

---

must therefore be

Code:

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if (document.form1.select1.value == 'EN')

---

A number (integer) may be used without quotation marks.