var ie4 = (document.all) ? true : false;
var ns4 = (document.layers) ? true : false;
var ns6 = (document.getElementById && !document.all) ? true : false;

function hidelayer(lay) {
	if (ie4 && document.all[lay]) {document.all[lay].style.visibility = "hidden";}
	if (ns4 && document.layers[lay]) {document.layers[lay].visibility = "hide";}
	if (ns6 && document.getElementById([lay])) {document.getElementById([lay]).style.display = "none";}
}

function showlayer(lay) {
	if (ie4 && document.all[lay]) {document.all[lay].style.visibility = "visible";}
	if (ns4 && document.layers[lay]) {document.layers[lay].visibility = "show";}
	if (ns6 && document.getElementById([lay])) {document.getElementById([lay]).style.display = "block";}
}

function writetolayer(lay,txt) {
	if (ie4 && document.all[lay]) {
		document.all[lay].innerHTML = txt;
	}

	if (ns4 && document.layers[lay]) {
		document[lay].document.write(txt);
		document[lay].document.close();
	}

	if (ns6 && document.getElementById([lay])) {
		over = document.getElementById([lay]);
		range = document.createRange();
		range.setStartBefore(over);
		domfrag = range.createContextualFragment(txt);

		while (over.hasChildNodes()) {
			over.removeChild(over.lastChild);
		}

		over.appendChild(domfrag);
   }
}

function openBrWindow(theURL,winName,features) { 
  	window.open(theURL,winName,features);
}

function showFMPopupHelp(fieldid) {
	var language ;

	if (!document.fm_frm.fm_lang)
		language = 'English';
	else		
		language = document.fm_frm.fm_lang.value ;

	var url = 'FieldHelpPopup.asp?fm_fid=' + escape(fieldid) + '&language=' + escape(language) ;
	
	openBrWindow(url, 'fieldhelp', 'width=310,height=230') ;
}

function showMessage(mes)
{
	window.status= mes ;

	showlayer('statusHelp');
	writetolayer('statusHelp', mes);
}

function clearMessage()
{
	window.status='';
	hidelayer('statusHelp');
}

function changeLanguage(elm)
{
	var language = elm.options[elm.selectedIndex].value ;

	if (!document.fm_frm.fm_lang)
		return ;

	document.fm_frm.fm_lang.value = language ;
}