Question

I would like to Find word on page, wrap in span tags with class. before proceeding to execute a javascript i have almost got ready.

If i can work out how to just do this first part i think i can get the rest.

Find word on page, wrap in span tags with a class applied to the span tags.
Must then be searchable via:

     $(document).ready(function(){

var injectionKey = /%id=inject%/ig;
var injectionStack = $('#%id%').html();

      (function($) {
  var theInjectionPage = $("span.myclass");
  theInjectionPage.html(theInjectionPage.html().replace(injectionKey, injectionStack)); 
})(jQuery)


    });

Answer 1

Do not use regex. Do not replace large chunks of innerHTML. Do not pass Go. Do not collect $200.

Walk over the text nodes only, finding the target text and splitting to insert new elements. See this question for example code using an <a>.