How to add target="_blank" to JavaScript window.location?

Question

The following sets the target to _blank:

if (key == "smk") {
    window.location = "http://www.smkproduction.eu5.org";
    target = "_blank";
    done = 1;
}

But this doesn't seem to work. How do I launch the link in a new tab?

Here is my code:

function ToKey() {
  var done = 0;
  var key = document.tokey.key.value;
  key = key.toLowerCase();
  if (key == "smk") {
    window.location = "http://www.smkproduction.eu5.org";
    target = "_blank"
    done = 1;
  }
  if (done == 0) {
    alert("Kodi nuk ?sht? valid!");
  }
}

<form name="tokey">
  <table>
    <tr>
      <td>Type the key</td>
      <td>
        <input type="text" name="key">
      </td>
      <td>
      </td>
      <td>
        <input type="button" value="Go" onClick="ToKey()">
      </td>
  </table>
</form>

Answer 1

window.location sets the URL of your current window. To open a new window, you need to use window.open. This should work:

function ToKey(){
    var key = document.tokey.key.value.toLowerCase();
    if (key == "smk") {
        window.open('http://www.smkproduction.eu5.org', '_blank');
    } else {
        alert("Kodi nuk ?sht? valid!");
    }
}