var link = null;
var tbalt = null;
var fol = null;
var subfol = null;
var lev_div = "";
var layer = "";

var qllink =null;
var qlalt =null;

var isV5 = false;
var isIE = false;
var navmenuout = true
var navmenutimeoutID = 1
var mouseout_menuarticle = true
var menutimeoutID = 1
var pollanswer = false

var isMinNS4 = (navigator.appName.indexOf("Netscape") >= 0 &&
                parseFloat(navigator.appVersion) >= 4) ? 1 : 0;
var isMinIE4 = (document.all) ? 1 : 0;
var isMinIE5 = (isMinIE4 && navigator.appVersion.indexOf("5.") >= 0) ? 1 : 0;


//base function
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_showHideLayers() {
if(parseInt(navigator.appVersion) == 5){
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  if(document.getElementById){
   for (i=0; i<(args.length-2); i+=3){
   obj=document.getElementById(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=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; }
 }
 }
else{
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  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) { //v3.0
  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); return x;
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
//end


var path = window.location.pathname;

if(path.indexOf('\\') != -1){
	div = "\\";
}else{
	div = "/";	
}

lev = path.split(div);

for(i=0; i<level_1.length; i++){	
	if(path.indexOf(div + level_1[i]) != -1){		
		fol = i;		
		for (j=0; j<lev.length; j++){
			if(lev[j] == level_1[i]){
				lev_no = j;
				break;
			}
		}
	}
}
if(typeof(lev_no)=='undefined' )
{
	lev_no = 0;
	lev_div = '';
	fol = 0;
}else
{
for (i=0 ;i<(lev.length - lev_no)-1 ;i++){		
		lev_div += "../";
	}}

if(lev_div == ""){
	lev_div = "sc_chi/";	
}
if ( document.location.href.toString().search('search.info.gov.hk/cgi-bin/se.cgi') != -1 )
{
	lev_div = "http://www.travelhealth.gov.hk/textonly/sc_chi/";
}

function gentable(l, a, img, tar, lay){
	if (link == null) { 
		link = new Array(); 
		layer = new Array();
		count = 0;
	} else { 
		count = link.length;
	}
	
	if (tbalt == null) {
		tbalt = new Array(); 
	}
	
	link[count] = l;	
	tbalt[count] = a;

	num = count+1;
	if(num < 10){		num = "0" + num;	}
	for(a=0; a<level_1.length; a++){		if(link[count].indexOf(level_1[fol]) != -1){			layer[count] = tbalt[count];		}		}
	if(link[count] != ""){		document.write('[<a href="'+link[count]+'" target="'+tar+'">'+tbalt[count]+'</a>] ');	}
}

function genlayerheader(lyno){
	document.write('<p>');
}

function genlayerfooter(){
	 document.write('</p><hr>');
}

function genlaytab(lylink,lyalt,lyorgcol,lyovercol, lytarget){

	document.write('[<a href="'+lylink+'" target="'+lytarget+'">'+lyalt+'</a>] ');
}
