Big5 Converter JavaScript WIP 2

// ==UserScript==
// @name           Big5KHSCS
// @namespace      Modifications
// @description    Changes documents that specify Big5 encoding to specify Big5-HKSCS instead
// @include        *
// ==/UserScript==


//document.title = "";

metaTags = document.getElementsByTagName("meta");

for( i=0 ; i<metaTags.length ; i++)

{
  // Look for: <meta charset="Big5">
  var cs = metaTags[i].getAttribute("charset");
  if (cs && (cs == "Big5")) {
    metaTags[i].setAttribute("charset","Big5-HKSCS");

//    document.title += "Charset UTF8!  ";  // Debug output
 }

  // Look for: <meta http-equiv="content-type" content="x=a;y=b;charset=Big5">
  var equiv = metaTags[i].getAttribute("http-equiv");

  if(equiv && (equiv=="content-type"))
  {

    var content = metaTags[i].getAttribute("content");

    if (content) {

      content.replace("charset=Big5","charset=Big5-HKSCS");

//      document.title = "Content!  "; // Debug output

      metaTags[i].setAttribute("content",content);
    }
  }
}
//document.title += "Finished!";  // Debug output