function spacer(){
	document.write("<tr>");
	document.write("<td><img src=\"images/space.jpg\" width=\"200\" height=\"2\"></td>");
	document.write("</tr>");
}

function filename(){
	path = location.href;
	file_id = path.lastIndexOf("/");
	file_id2 = path.lastIndexOf(".");
	fname = path.substring(file_id+1,file_id2);
	return fname;
}

function MenuItem(_name,_label,_url,_target)
{
	this.name = _name;
	this.label = _label;
	this.url = _url;
	this.target = _target;
	this.relatives = false;
	this.children = false;
}

var TagLabel = "<tr>";
	TagLabel+= "<td><img name=\"nav_{prefix}{idx}\" border=\"0\" src=\"images/nav_{prefix}{idx}_ro.gif\"  alt=\"{alt}\"></td>";
	TagLabel+= "</tr>";
	
var TagLabelLink = "<tr>";
	TagLabelLink+= "<td><a href=\"{url}\" target=\"{target}\"><img name=\"nav_{prefix}{idx}\" border=\"0\" src=\"images/nav_{prefix}{idx}_ro.gif\"  alt=\"{alt}\"></a></td>";
	TagLabelLink+= "</tr>";
	
var TagLink = "<tr>";
	TagLink+= "<td><a href=\"{url}\" target=\"{target}\" onMouseOut=\"MM_swapImgRestore();MM_displayStatusMsg(' ');return document.MM_returnValue\" onMouseOver=\"MM_swapImage('nav_{prefix}{idx}','','images/nav_{prefix}{idx}_ro.gif',1);MM_displayStatusMsg('{alt}');return document.MM_returnValue\"><img name=\"nav_{prefix}{idx}\" border=\"0\" src=\"images/nav_{prefix}{idx}.gif\"  alt=\"{alt}\"></a></td>";
	TagLink+= "</tr>";

function relativePageChk(name,nameGrp)
{
	if (nameGrp == false || nameGrp == undefined || nameGrp.length <= 0)
	return false;
	
	var grpLen = nameGrp.length;
	for (var i = 0; i < grpLen; i++) { if (name == nameGrp[i]) return true; }
	return false;
}
function pageChk(pageGrp)
{
	if (pageGrp == false || pageGrp.length <= 0)
	return -1;
	
	var idxLvl = new Array();
	var grpLen = pageGrp.length;
	for (var i = 0; i < grpLen; i++)
	{
		if ( filename() == pageGrp[i].name ||
			(filename() != pageGrp[i].name && relativePageChk(filename(),pageGrp[i].relatives) != false) ) {
			idxLvl.push(i);
			return idxLvl;
		} else if (filename() != pageGrp[i].name && pageChk(pageGrp[i].children) >= 0) {
			idxLvl.push(i);
			idxLvl = idxLvl.concat(pageChk(pageGrp[i].children));
			return idxLvl;
		}
	}
	return -1;
}

function convertMenuItem(tag,menuItem,idx,prefix)
{
	var tempCode = tag;
		tempCode = tempCode.replace(/{idx}/g,idx);
		tempCode = tempCode.replace(/{prefix}/g,prefix);
		tempCode = tempCode.replace(/{url}/g,menuItem.url);
		tempCode = tempCode.replace(/{alt}/g,menuItem.label);
		tempCode = tempCode.replace(/{target}/g,menuItem.target);
	return tempCode;
}

function ListMenuCode(menuGrp,prefix,lvl,childForceSwitch)
{
	if ( menuGrp == false || menuGrp.length <= 0 ||
		(pageChk(menuGrp) < 0 && childForceSwitch == false) )
	return false;
	
	var menuLen = menuGrp.length;
	var idxLvl = pageChk(menuGrp);
	var menuCode = "";
	
	for (var i = 0; i < menuLen; i++)
	{
		var tempCode = "";
		var childCode = "";
		if ( i == idxLvl[0] &&
			(idxLvl.length > 1 || relativePageChk(filename(),menuGrp[i].relatives) != false) ) {
			TagCode = TagLabelLink;
			childForceSwitch = true;
		} else if (i == idxLvl[0] && idxLvl.length <= 1) {
			TagCode = TagLabel;
			childForceSwitch = true;
		} else {
			TagCode = TagLink;
			childForceSwitch = false;
		}
			tempCode = convertMenuItem(TagCode,menuGrp[i],i,prefix);
			childCode = ListMenuCode(menuGrp[i].children,prefix+i+"_",lvl+1,childForceSwitch);
		if (childCode != false) tempCode+= childCode;
			menuCode+= tempCode;
	}
	return menuCode;
}

var contactMenuGrp	= new Array();
	
	contactMenuGrp[0] = new MenuItem("head_office","Head Office Location","head_office.asp","_self");
	contactMenuGrp[1] = new MenuItem("pmd","Property Management Division","pmd.asp","_self");
	contactMenuGrp[2] = new MenuItem("application","Applications Section (Rental)","application.asp","_self");
	contactMenuGrp[3] = new MenuItem("app_hsls","Applications Section (Subsidised Housing / Grant Loan Schemes)","app_hsls.asp","_self");
	contactMenuGrp[4] = new MenuItem("estate","Estate / Property Management Office","estate.asp","_self");
	contactMenuGrp[5] = new MenuItem("pmac","Property Management Advisory Centres","pmac.asp","_self");
	contactMenuGrp[6] = new MenuItem("erc","Housing Society Eldery Resources Centre","erc.asp","_self");
	contactMenuGrp[7] = new MenuItem("index","Contact Us","index.asp","_self");

function callmenu()
{	
	document.write("<table width=\"20%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">");
	document.write("<tr>");
	document.write("<td><img src=\"images/blank.gif\" width=\"200\" height=\"27\"></td>");
	document.write("</tr>");
	/******/
	document.write(ListMenuCode(contactMenuGrp,"01_",0,true));
	/******/
	document.write("</table>");

}


// Dreamweaver

function MM_swapImgRestore() { //v3.0
  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_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_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 MM_swapImage() { //v3.0
  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_displayStatusMsg(msgStr) { //v1.0
  status=msgStr;
  document.MM_returnValue = true;
}

function lang(version){
	link = location.href;
	english = "/eng/";
	chinese = "/chi/";
	
	//setting for no chinese
	if (version == "nchi"){
		parent.location.href= "";
	}

	//setting for no english
	if (version == "neng"){
		parent.location.href="";
	}
	
	
	if (version == "en"){
		link = link.replace (chinese, english);
		parent.location.href = link;
	}else if (version == "ch"){
		link = link.replace (english, chinese);
		parent.location.href = link;
	}
}