title: want to match only whole words in javascript for error
body: <p>So I am trying to create a little form validation on entering a Name
  I want to not allow certain characters, already created names, and internally reserved words. The problem is say when I want to put "posts" in a name it says that it is matching "pos" and fails.</p>
  
  <pre><code>var badchar = new Array('"', "," , "'" , "#", "&amp;", "!", "@", "$", "+", ";", ":", "*", "(",")", "[","]","{","}", "/", "=" );
      var resword = new Array("positive","pos","negative","neg","neutral", "neu","twitter","itunes","facebook","android","forums","RSS Feeds");
  
      var existingNames = @anames;
      var valueLen = $("#aname").val().length;
      var fail=false;
  
      var filterElem = $('#aname');
      var filterName = $('#aname').val();
  
      $.each(badchar, function(char){
          if ( filterName.indexOf(badchar[char]) != -1 ) {
              console.log("bad character")
              filterElem.css('border','2px solid red');
              window.alert("You can not include '" + badchar[char] + "' in your Filter Name");
              fail = true;
          }
      });
  
      $.each(resword,function(){
          if ( filterName.match(this)) {
                  console.log("bad word");
                  filterElem.css('border','2px solid red');
                  window.alert("You can not include '" + this + "' in your Filter Name");
                  fail = true;
              }
      });
  </code></pre>