//declare var
//code name switch
var switchout = true
var switchtimeoutID = 1

var ns6=document.getElementById&&!document.all
var ie5=document.all
var __win=null;

function MM_reloadPage(init) {  //Updated by PVII. Reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

//Dreamweaver Function
function MM_jumpMenu(targ,selObj,restore){ //v3.0
eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
if (restore) selObj.selectedIndex=0;
}

function MM_showHideLayers() { //v3.0A Modified by Al Sparber and Massimo Foti for NN6 Compatibility
  var i,p,v,obj,args=MM_showHideLayers.arguments;if(document.getElementById){
   for (i=0; i<(args.length-2); i+=3){ obj=tmt_findObj(args[i]);v=args[i+2];
   v=(v=='show')?'visible':(v='hide')?'hidden':v;
   if(obj)obj.style.visibility=v;}} else{
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("##")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImage() { //v3.0C
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_swapImgRestore() { //v3.0C
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function tmt_findObj(n){
	var x,t; if((n.indexOf("?"))>0&&parent.frames.length){t=n.split("?");
	x=eval("parent.frames['"+t[1]+"'].document.getElementById('"+t[0]+"')");
	}else{x=document.getElementById(n)}return x;
}

function popupWin(url,w,h,wname,x,y) {
	// %25 = "%".  revert the over-encoded url for netscape
	window.location = location;
	url = url.replace(/%25/g, "%");
	w = w || 540
	h = h || 455
	x = x || 0
	y = y || 250
	__win=window.open(url,wname,'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,screenX='+x+',screenY='+y+',top='+y+',left='+x+',resizable=1,width='+w+',height='+h)
	setTimeout('__win.focus()', 300)
}

function print_popupWin(url,w,h,wname,x,y) {
	window.location = location;
	url = url.replace(/%25/g, "%");
	w = w || 601
	h = h || 295
	x = x || 0
	y = y || 250
	__win=window.open(url,wname,'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,screenX='+x+',screenY='+y+',top='+y+',left='+x+',resizable=1,width='+w+',height='+h)
	setTimeout('__win.focus()', 300)
}


//script for new menu
function switch_over() {
switchout = false ;
clearTimeout(switchtimeoutID);
}

function switch_out() {
switchout = true ;
switchtimeoutID = setTimeout("autohide_menu()","500");
}

function autohide_menu() {
if (switchout == true) {
	hideLayer('ch1');
	hideLayer('ch2');
	hideLayer('ch3');
	hideLayer('ch4');
}
}

function hideLayer(sec) {
  MM_showHideLayers('dropdown' + sec,'','hide');
  imageOff("imgTab_" + sec);
  currentSectionTabOn();
}

function hideother(layername) {
if (layername != 'dropdownch1') MM_showHideLayers('dropdownch1','','hide');
if (layername != 'dropdownch2') MM_showHideLayers('dropdownch2','','hide');
if (layername != 'dropdownch3') MM_showHideLayers('dropdownch3','','hide');
if (layername != 'dropdownch4') MM_showHideLayers('dropdownch4','','hide');
}

// stock array object for BOCHK's Homepage Stock Info. See also "data.js"
var stock = []
stock[0] = new Object();
stock[1] = new Object();


function ToString(str) {
	if(str == null) return "";
	else return str.toString();
}

//////// main nav on and off
function imageOn(imgName) {
	img = MM_findObj(imgName);
	if (img) img.src = img.src.replace("_off.", "_on.");
}

function imageOff(imgName) {
	img = MM_findObj(imgName);
	if (img) img.src = img.src.replace("_on.", "_off.");
}

function layerOn(layerName) {
	MM_showHideLayers(layerName,'','show');
	switch_over();
	hideother(layerName);
}

function menuOn(sec) {
	autohide_menu();
	imageOn("imgTab_" + sec)

	layerName = "dropdown" + sec;
	layerOn(layerName);
}

function menuOff(sec) {
	switch_out();

	if(sec == "$section") return;
	imgName = "imgTab_" + sec;
	imageOff(imgName);
}

function mItemOn(imgName) {
	imageOn(imgName)
	switch_over();		
}

function mItemOff(imgName) {
	imageOff(imgName);
	switch_out();
}
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}