code: function(el, text) {
        var scrollPos = el.scrollTop,
          strPos = 0,
          browser = false,
          range;
  
        if ((el.selectionStart || el.selectionStart === '0')) {
          browser = "ff";
        } else if (document.selection) {
          browser = "ie";
        }
  
        if (browser === "ie") {
          el.focus();
          range = document.selection.createRange();
          range.moveStart('character', -el.value.length);
          strPos = range.text.length;
        } else if (browser === "ff") {
          strPos = el.selectionStart;
        }
  
        var front = (el.value).substring(0, strPos);
        var back = (el.value).substring(strPos, el.value.length);
        el.value = front + text + back;
        strPos = strPos + text.length;
        if (browser === "ie") {
          el.focus();
          range = document.selection.createRange();
          range.moveStart('character', -el.value.length);
          range.moveStart('character', strPos);
          range.moveEnd('character', 0);
          range.select();
        } else if (browser === "ff") {
          el.selectionStart = strPos;
          el.selectionEnd = strPos;
          el.focus();
        }
        el.scrollTop = scrollPos;
      }
docs: Inserts the given value at the current cursor position of the textarea element
  
  @param  {HtmlElement} el
  @param  {String} value Text which will be inserted at the cursor position