function fixlinkpart(re, out)
{
   var str;
   for(i = 0;i < document.links.length;i++)
   {
	  str = "" + document.links[i].innerHTML;
	  if(str.search(re) != -1)
		 document.links[i].innerHTML = str.replace(re, out);
	  
	  str = "" + document.links[i].href;
	  if(str.search(re) != -1)
		 document.links[i].href = str.replace(re, out);
   }
}

function fixlinks()
{
	fixlinkpart (/my_first_name/ig, "gareth");
	fixlinkpart (/my_full_name/ig, "garethlewin");
}