Javascript - Regex rule, find XX but not in span tag

Text

message = 'Hello, my name ist Peter!';

My Tags

tags = {}; 
tags.tagsOne = {};
tags.tagsOne['t1'] = 'hello|is|there|g';
tags.tagsOne['t2'] = 'bub';
tags.tagsOne['t3'] = 'dog|house';
tags.tags开发者_高级运维Two = {}; 
tags.tagsTwo['t1'] = 'blub|man';
tags.tagsTwo['t2'] = 'word';
tags.tagsTwo['t3'] = 'sorry|high';

Regex

regexT1 = new RegExp('('+tags.tagsOne['t1']+'|'tags.tagsTwo['t1']+')','gi');
regexT2 = new RegExp('('+tags.tagsOne['t2']+'|'tags.tagsTwo['t2']+')','gi');
regexT3 = new RegExp('('+tags.tagsOne['t3']+'|'tags.tagsTwo['t3']+')','gi');

Replace

message = message.replace(regexT1,'<span class="highlightT1">$1</span>');
message = message.replace(regexT2,'<span class="highlightT2">$1</span>');
message = message.replace(regexT3,'<span class="highlightT3">$1</span>');

He finds and replaces the <span class="highlightT1">$1</span> too.

Is it possible in regex to say, but not this -> <span class="highlightT1">$1</span>

Example

-> http://jsfiddle.net/tVmTe/3/

UPDATE:

Working example -> http://jsfiddle.net/tVmTe/9/

Split the message on space and consider each word individually.

var words = message.split(' '),
   var i = 0;
for(i; i < words.length; ++i){
   if(regexT1.test(words[i])){
      words[i] = words[i].replace(regexT1,'<span class="highlightT1">$1</span>');
      continue;
   }
   //...
}
message = words.join(' ');