You can use window.open() with _blank option to open in new tab

 function gotosite() {
  window.open(document.getElementById("GulfPlace").value,'_blank'); // JQuery:  $("#GulfPlace").val();
  window.open(document.getElementById("Polynesian").value,'_blank'); // JQuery:  $("#Polynesian").val();
  window.open(document.getElementById("GrandCaribbean").value,'_blank'); // JQuery:  $("#GrandCaribbean").val();
  window.open(document.getElementById("DunesOfSeagrove").value,'_blank'); // JQuery:  $("#DunesOfSeagrove").val();
  window.open(document.getElementById("PinnaclePort").value,'_blank'); // JQuery:  $("#PinnaclePort").val();
}

So, I have a little site I made, and it has some drop down options for our company to use. I am trying to get the “Go” buttons I have created to open the links from the drop down in a new tab, that way you do not lose the page, because it currently opens the link in the same tab as the help page. I will paste a sample below, and if I can get any assistance that would be a

<select id="Polynesian">
  <option value="#">Choose a CMTS</option>
  <option value="http://MYURL1/">Pond</option>
  <option value="http://MYURL2/">Beach</option>
</select>
<button id="go" onclick="gotosite()">Go</button>

And here is my button js I created for each button.

function gotosite() {
  window.location = document.getElementById("GulfPlace").value; // JQuery:  $("#GulfPlace").val();
  window.location = document.getElementById("Polynesian").value; // JQuery:  $("#Polynesian").val();
  window.location = document.getElementById("GrandCaribbean").value; // JQuery:  $("#GrandCaribbean").val();
  window.location = document.getElementById("DunesOfSeagrove").value; // JQuery:  $("#DunesOfSeagrove").val();
  window.location = document.getElementById("PinnaclePort").value; // JQuery:  $("#PinnaclePort").val();
}