var expDays = 1; // number of days the cookie should last
/*
var path = "/";

var domain ;
var locapath = document.location.href

if (locapath.toString().search('/preview/')!= -1){
	var page  = "/preview";
}else{
	var page  = "";
}

if (locapath.toString().search('/textonly/')!= -1){
	 page += "/textonly/sc_chi/disclaimer/statment.html";
}else{
	 page += "/sc_chi/disclaimer/statment.html";
}


org_path_start = locapath.indexOf("://") + 3;
org_path_end = locapath.length;
domain = locapath.substring(org_path_start, org_path_end);

if (domain.toString().search('/')!= -1){
	org_path_start = 0;
	org_path_end = domain.indexOf("/");
	domain = domain.substring(org_path_start, org_path_end);
}
*/

function GetCookie (name) {  
	var arg = name + "=";  
	var alen = arg.length;  
	var clen = document.cookie.length;  
	var i = 0;  
	while (i < clen) {    
		var j = i + alen;    
		if (document.cookie.substring(i, j) == arg) return getCookieVal (j);    
		i = document.cookie.indexOf(" ", i) + 1;    
		if (i == 0) break;   
	}  
	return null;
}
function SetCookie (name, value) {  
	var argv = SetCookie.arguments;  
	var argc = SetCookie.arguments.length;  
	var expires = (argc > 2) ? argv[2] : null;  
	//var path = (argc > 3) ? argv[3] : null;  
	//var domain = (argc > 4) ? argv[4] : null;  

	var secure = (argc > 5) ? argv[5] : false;  
	document.cookie = name + "=" + escape (value) + 
	//((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
	//((expires == null) ? "" : ("; expires=")) + 
	((path == null) ? "" : ("; path=" + path)) +  
	((domain == null) ? "" : ("; domain=" + domain)) +    
	((secure == true) ? "; secure" : "");
}
function DeleteCookie (name) {  
	var exp = new Date();  
	exp.setTime (exp.getTime() - 1);  
	var cval = GetCookie (name);  
	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}

var exp = new Date(); 
exp.setTime(exp.getTime() + (expDays*24*60*60*1000));

function amt(){
	var count = GetCookie('sccount')
	if(count == null) {
		SetCookie('count','1')
		return 1
	}
	else {
		var newcount = parseInt(count) + 1;
		DeleteCookie('sccount')
		SetCookie('sccount',newcount,exp)
		return count
	}
}
function getCookieVal(offset) {
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
	endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}

function checkCount() {
	var sccount = GetCookie('sccount');
	if (sccount == null) {
		SetCookie('orgiurl',document.location.href, exp);
		window.location.href=page;
	}
	else {
		//count++;
		//SetCookie('count', count, exp);
   }
}

//if ((locapath.toString().search('/sc_chi/')!= -1)||(locapath.toString().search('scindex.html')!= -1))   {
//	checkCount();
//}



//Finish Check SC statment




var dept = "/";
var domain = "";
var scserver = "http"+"://sc.info.gov.hk/gb/";
var locapath = document.location.href
//var locapath = "http://www.sar-expertcom.gov.hk/textonly/eindex.html";


function chglang(lang){

	switch(lang){
		case 'tctoen':
			
			if (locapath.toString().search('lang_id=2')!= -1){
				locapath = locapath.replace("lang_id=2","lang_id=1");
			}else{
				locapath = locapath.replace("_chi","_eng");
			}
			break;
		case 'tctosc':
			
			if (locapath.toString().search('lang_id=2')!= -1){
				locapath = locapath.replace("lang_id=2","lang_id=3");
			}else{
				locapath = locapath.replace("_chi","_gb");
			}
			break;
		case 'sctoen':
			
			if (locapath.toString().search('lang_id=3')!= -1){
				locapath = locapath.replace("lang_id=3","lang_id=1");
			}else{
				locapath = locapath.replace("_gb","_eng");
			}
			break;
		case 'sctotc':
			
			if (locapath.toString().search('lang_id=3')!= -1){
				locapath = locapath.replace("lang_id=3","lang_id=2");
			}else{
				locapath = locapath.replace("_gb","_chi");
			}
			break;
		case 'entotc':
			
			if (locapath.toString().search('lang_id=1')!= -1){
				locapath = locapath.replace("lang_id=1","lang_id=2");
			}else{
				locapath = locapath.replace("_eng","_chi");
			}
			break;
		case 'entosc':

			if (locapath.toString().search('lang_id=1')!= -1){
				locapath = locapath.replace("lang_id=1","lang_id=3");
			}else{
				locapath = locapath.replace("_eng","_gb");
			}
			break;
	}
	window.location = locapath;

}

function tellafriend( lang )
{
  if (lang == 'eng')
  {
     window.location = subdir + '/english/tell/tell.asp?base=http%3A//'+ domain + subdir + '/english/tell/&url=' + escape(window.location);
  }else if (lang == 'chi')
  {
     window.location = subdir + '/tc_chi/tell/tell.asp?base=http%3A//'+ domain + subdir + '/tc_chi/tell/&url=' + escape(window.location);
  }else if (lang == 'schi')
  {
     window.location = subdir + '/sc_chi/tell/tell.asp?base=http%3A//'+ domain + subdir + '/sc_chi/tell/&url=' + escape(window.location);
  }else if (lang == 'eng_txt')  
  {
     window.location = subdir + '/textonly/english/tell/tell.asp?base=http%3A//'+ domain + subdir + '/textonly/english/tell/&url=' + escape(window.location);
  }else if (lang == 'chi_txt')
  {
     window.location = subdir + '/textonly/tc_chi/tell/tell.asp?base=http%3A//'+ domain + subdir + '/textonly/tc_chi/tell/&url=' + escape(window.location);
  }else if (lang == 'schi_txt')
  {
     window.location = subdir + '/textonly/sc_chi/tell/tell.asp?base=http%3A//'+ domain + subdir + '/textonly/sc_chi/tell/&url=' + escape(window.location);
  }
  //window.location = '../tell/tell.html?url=' + escape(window.location);
}

function splitString (stringToSplit,separator) {
 var arrayOfStrings = stringToSplit.split(separator);
 return arrayOfStrings[1];
}


function hide_all_submenu(){
	document.getElementById('div_main_submenu1').style.display='none';
	document.getElementById('div_main_submenu2').style.display='none';
	document.getElementById('div_main_submenu3').style.display='none';
	document.getElementById('div_main_submenu4').style.display='none';
	document.getElementById('div_main_submenu1_child1').style.display='none';
}

function hide_submenu_child(child_id){
	switch(child_id){
		case 1:
			document.getElementById('div_main_submenu1_child1').style.display='none';
			break;
		case 2:
			
			break;
		case 3:
			
			break;
		case 4:
			
			break;
		case 5:
			
			break;
	}
}

function show_sub_menu(menu_id){
	switch(menu_id){
		case 1:
			document.getElementById('div_main_submenu1').style.display='block';
			document.getElementById('div_main_submenu2').style.display='none';
			document.getElementById('div_main_submenu3').style.display='none';
			document.getElementById('div_main_submenu4').style.display='none';
			break;
		case 2:
			document.getElementById('div_main_submenu2').style.display='block';
			document.getElementById('div_main_submenu1').style.display='none';
			document.getElementById('div_main_submenu3').style.display='none';
			document.getElementById('div_main_submenu4').style.display='none';
			break;
		case 3:
			document.getElementById('div_main_submenu3').style.display='block';
			document.getElementById('div_main_submenu1').style.display='none';
			document.getElementById('div_main_submenu2').style.display='none';
			document.getElementById('div_main_submenu4').style.display='none';
			break;
		case 4:
			document.getElementById('div_main_submenu4').style.display='block';
			document.getElementById('div_main_submenu1').style.display='none';
			document.getElementById('div_main_submenu2').style.display='none';
			document.getElementById('div_main_submenu3').style.display='none';
			break;
		case 5:
			document.getElementById('div_main_submenu1').style.display='block';
			document.getElementById('div_main_submenu2').style.display='none';
			document.getElementById('div_main_submenu3').style.display='none';
			document.getElementById('div_main_submenu4').style.display='none';
			document.getElementById('div_main_submenu1_child1').style.display='block';	
			break;
	}
}

function randomPhoto() {

  var no;
  link = new Array;
  
   no = 2;
   link[1] = "1";
   link[2] = "2";
   //link[3] = "3";

  rnd = Math.ceil(Math.random()*no);
  output="<img src=\"images/main_center_middle" + link[rnd] + ".jpg\" width=\"987\" height=\"463\" border=\"0\">";
  document.write(output);

}

function printSelection(node){
	  var content=node.innerHTML;
	  content = content.replace("100%", "800");
	  //content = content.replace("<!-- print_header -->", "<img src='http://www.chsc.hk/images/print_header.jpg'>");
	  var pwin=window.open('','print_content','width=840,height=800,scrollbars=yes');
	  pwin.document.open();
	  pwin.document.write('<html><body onload="window.print()">'+content+'</body></html>');
	  pwin.document.close();
}

var tgs = new Array( 'div','table','tr','td','p');
var szs = new Array( '7pt','8pt','9pt','10pt','11pt','12pt','13pt','14pt','15pt');
var startSz = 4;

function ts( trgt,inc ) {
  if (!document.getElementById) return
  var d = document,cEl = null,sz = startSz,i,j,cTags;
  //alert(sz);
  if(inc =='def'){
	sz = 4;
  }else{
	sz += inc;
  }
  //alert(sz);
  if ( sz < 0 ) sz = 0;
  if ( sz > 8 ) sz = 8;
  startSz = sz;
    
  if ( !( cEl = d.getElementById( trgt ) ) ) cEl = d.getElementsByTagName( trgt )[ 0 ];

  cEl.style.fontSize = szs[ sz ];

  for ( i = 0 ; i < tgs.length ; i++ ) {
    cTags = cEl.getElementsByTagName( tgs[ i ] );
    for ( j = 0 ; j < cTags.length ; j++ ) cTags[ j ].style.fontSize = szs[ sz ];
  }
}