var textNodes = $(selector).textNodes();

 
(function($) { // main code
	$.textNode = function(s) {return $(document.createTextNode(s))};
	// create a $ containing a single textNode, very useful for appendTo()
 
	$.fn.extend({
		textNodes: function(deep) { // requires an ender
		// return the text noded under a dom node, either deep or shallow (one level down)
			var texts=[];
			this.each(function(){
				var children =this.childNodes;
				for (var i = 0; i < children.length; i++){
					var child = children[i];
					if (child.nodeType == 3 && child.parentNode.nodeName.toLowerCase().indexOf('script') == -1) {
						texts.push(child);
					}
					else if (deep && child.nodeType == 1)
						[].push.apply(texts,$(child).textNodes(deep,true));
				}
			});
            // DAYLIFE.log(['textNodes', this, arguments[1]]);
			return arguments[1] ? texts: this.pushStack(texts);
		}
	})
})(jQuery);

var self=this;
textNodes.each(function() {
    if (!found) {
        if (self.invalid_tag(this.parentNode)) return;
        var textnode_text = this.data;
        var topic_loc = textnode_text.indexOf(topic_alias);
        while (topic_loc != -1) {
            //DAYLIFE.log(['Analyzing match', textnode_text.substr(topic_loc+topic_alias.length, 1).search(/[.,?!)]:;<s]/)]);
            if (self.is_valid_topic_terminator(textnode_text, topic_loc, topic_alias)) {
                topic_loc = textnode_text.indexOf(topic_alias, topic_loc+topic_alias.length);
                continue;
            }
            // DAYLIFE.log(['Found good match', topic_alias, topic_loc, topic_alias.length]);
            before = document.createTextNode(textnode_text.substring(0, topic_loc));
            after = document.createTextNode(textnode_text.substring(topic_loc+topic_alias.length));
            original = textnode_text;
            $(this).before($(before));
            $(this).after($(after));
            $(this).before(wrap_topic(topic, topic_alias));
            this.parentNode.removeChild(this);
            found = true;
            return;
        }
    } 
});