testsite = "www.cweb.com.hk";
prodsite = "www.lcsd.gov.hk";
 _url = top.location.href;
 
webserver_path = LCSD_URL();
//webserver_path = "www.lcsd.gov.hk";
kanserver_path = "sc.lcsd.gov.hk/gb/";

div_path = "/";
cv_sc_base_path = "http:" + "//" + kanserver_path + webserver_path;
cv_nonsc_base_path = "http:" + "//" + webserver_path;

sc_path = cv_sc_base_path + div_path;
tc_path = cv_nonsc_base_path + div_path;

if (location.href.toString().search('/gb/') != -1) {
	atgb = 1
} else {
	atgb = 0;
}

function LCSD_URL(){
	if (istest(_url))
		return testsite;
	else
		return prodsite;
}
function istest(str_url){
	if (str_url.indexOf(testsite) != -1){
		return true;
	}
	return false;
}
function changelang(lang)
{

 if (parent.frames.length > 0)
  {
	for (i=0; i<parent.frames.length; i++)
	{
		org_path=parent.frames[i].location.pathname;
		//org_path_start=org_path.indexOf(div_path);
		org_path_start=org_path.indexOf(webserver_path);
		if (org_path_start>-1)
		{
			org_path_end=webserver_path.length;
			//add=org_path.substring(org_path_start, org_path_end);
			add = org_path.substring(org_path_start+org_path_end, org_path.length);
		}
		else
		{
			org_path_end=org_path.length;
			add=org_path.substring(org_path_start, org_path_end);
		}
		
		if (lang == "tc")
		{
			tempPath = add.replace("/en/", "/b5/");
		}
		else if (lang == "sc")
		{
			tempPath = add.replace("/en/", "/b5/");
		}
		else if (lang == "en")
		{
			tempPath = add.replace("/b5/", "/en/");
		}
		path = tempPath;

		if (lang == 'sc') {
			base_path = cv_sc_base_path;
		} else {
			base_path = cv_nonsc_base_path;
		}	
	
		parent.frames[i].location.href = base_path + path;

	}
  }
  else
  {
	  	org_path=parent.location.pathname;
		org_path_start=org_path.indexOf(webserver_path);
		if (org_path_start>-1)
		{
			org_path_end=webserver_path.length;
			//add=org_path.substring(org_path_start, org_path_end);
			add = org_path.substring(org_path_start+org_path_end, org_path.length);
		}
		else
		{
			org_path_start=org_path.indexOf(div_path);
			org_path_end=org_path.length;
			add=org_path.substring(org_path_start, org_path_end);
		}
		if (lang == "tc")
		{
			tempPath = add.replace("/en/", "/b5/");
		}
		else if (lang == "sc")
		{
			tempPath = add.replace("/en/", "/b5/");
		}
		else if (lang == "en")
		{
			tempPath = add.replace("/b5/", "/en/");
		}
		path = tempPath;

		if (lang == 'sc') {
			base_path = cv_sc_base_path;
		} else {
			base_path = cv_nonsc_base_path;
		}	
  	parent.location.href = base_path + path;;
  }

}

function show_link() {

	if (atgb) 
	{
		document.write("<A onmouseover=\"MM_swapImage('mainbar3','','../clf/gb/mainbar3b_f2.gif',1)\"  onmouseout=MM_swapImgRestore() href=\"javascript:changelang('tc')\"    target=_top><IMG src=\"../clf/gb/mainbar3b.gif\" alt=\"ÁcÅ骩\" name=mainbar3 width=49 height=19       border=0 id=\"mainbar3\"></A>");

	} else 
	{
	document.write ("<A  onmouseover=\"MM_swapImage('mainbar3','','../clf/b5/mainbar3b_f2.gif',1)\"    onmouseout=MM_swapImgRestore()     href=\"javascript:changelang('sc')\"       target=_top><IMG src=\"../clf/b5/mainbar3b.gif\" alt=\"²Ê^ª©\" name=mainbar3 width=49 height=19       border=0 id=\"mainbar3\"></A>");
	}
}