/**
 * with thanks to David Gardner
 * http://www.codeproject.com/jscript/dcontent.asp 
 **/

var ttnTOC = (HM_NS4) ? 1 : ((HM_IE4) ? 2 : ((HM_DOM) ? 3 : 0));

function ttnGetLayerString(lid,dtxt) {
	if (ttnTOC >= 2) {
		return '<SPAN ID="'+lid+'">'+dtxt+'</SPAN>'; }
	else if (ttnTOC == 1) {
		return '<ilayer name="'+lid+'_A"><layer name="'+lid+'_B">'+dtxt+'</layer></ilayer>'; }
	else {
		return ''; }}

function ttnOverWriteLayerText(lid,dtxt) {
	if (ttnTOC == 3) {
		document.getElementById(lid).innerHTML = dtxt; }
	else if (ttnTOC == 2) {
		eval('document.all.'+lid+'.innerHTML = dtxt;'); }
	else if (ttnTOC == 1) {
		eval('document.'+lid+'_A.document.'+lid+'_B.document.write(dtxt);');
		eval('document.'+lid+'_A.document.'+lid+'_B.document.close();'); }
	else {
		return false; }
	return true; }