/**
* Extract a parameter from an XML tag field
* getPara('nkey', '<nkey="asdf123"\>')   => 'asdf123'
*/
function getPara(paraname, str){
  //str = str.toLowerCase();
  var si = str.indexOf("<"+paraname) + paraname.length + 3;
  var key = str.substring(si, str.length);

  // Start...
  //alert("si: " + si + " str = [" + str.substring(0,20) + "]\n\n key = [" + key.substring(0,20));

  // Now find the end of the value
  var ei = key.indexOf("\>");

  var final = key.substring(0, ei-2);

  // End...
  //alert("ei: " + si + " key = [" + key.substring(key.length-20,key.length) + "]\n\n final = [" + final.substring(final.length-20,final.length) );

  return final;
}