My goal: each time a user selects text, and clicks a button, that text gets added to an array. The problem: each time the button is pressed, the all objects of the array get overridden with the currently selected text.

I'd really appreciate help changing the behavior so that the selected text doesn't override all previous array items.

<script type="text/javascript">
  var selects = new Array();
  selects.push("1");
  function getSelText()
  {
    var i = 0;
    while (i<1) {
      var txt = [null];
      var x = 0;
      if (window.getSelection)
      {
          txt[x] = window.getSelection();
      }
      else if (document.getSelection)
      {
          txt[x] = document.getSelection();
      }
      else if (document.selection)
      {
          txt[x] = document.selection.createRange().text;
      }
      else return;
      selects.push(txt);
      x++;
      i++;
    };
    document.menu.selectedtext.value = selects;
  }
</script>


<form class="menu" name="menu">
  <input type="button" value="highlight" class="highlightButton" onmousedown="getSelText()"/>
  <textarea name="selectedtext" rows="5" cols="20"></textarea>
</form>

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