function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
function imgSwap(oImg)
{
   var strOver  = "_over";    // image to be used with mouse over
   var strOff = "_off";    // normal image
   var strImg = oImg.src;
   if (strImg.indexOf(strOver) != -1) 
      oImg.src = strImg.replace(strOver,strOff);
   else
      oImg.src = strImg.replace(strOff,strOver);
}


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) { //v4.01
  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 && d.getElementById) x=d.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];}
}
rootlocation = 'http://'+document.location.hostname;
rootlocation2 = document.location.hostname;
function eng1()
{
	document.location.href=rootlocation+document.location.pathname.replace('en', 'b5');
}
function eng2()
{
	document.location.href='http://sc.lcsd.gov.hk/gb/'+rootlocation2+document.location.pathname.replace('en', 'b5');
}
function eng3()
{
	var cur_loc=document.location.pathname;
	if(location.href.toString().search('/en/text/')!=-1)
	{
	document.location.href=rootlocation+document.location.pathname.replace('/en/text/', '/en/');
	}
	else
	{
	document.location.href=rootlocation+document.location.pathname.replace('/en/', '/en/text/');
	}
}
function chi1()
{
	var cur_loc=document.location.pathname;
	if(location.href.toString().search('/gb/')!=-1)	
	{
	document.location.href=(location.href.toString().replace('sc.lcsd.gov.hk/gb/',''));
	}
	else
	{
		if(location.href.toString().search('www')!=-1)
		{
		document.location.href='http://sc.lcsd.gov.hk/gb/'+rootlocation2+document.location.pathname;
		}
		else
		{
		document.location.href='http://sc.lcsd.gov.hk/gb/'+rootlocation2+document.location.pathname;
		}
	}
}
function chi2()
{
	var cur_loc=document.location.pathname;
	if(location.href.toString().search('/gb/')!=-1)
	{
		document.location.href=(location.href.toString().replace('sc.lcsd.gov.hk/gb/','').replace('b5', 'en'));
	}
	else
	{
	document.location.href=rootlocation+document.location.pathname.replace('b5', 'en');
	}
}
function chi3()
{
	var cur_loc=document.location.pathname;
	if(location.href.toString().search('/b5/text/')!=-1)
	{
	document.location.href=document.location.pathname.replace('/b5/text/', '/b5/');
	}
	else
	{
	document.location.href=document.location.pathname.replace('/b5/', '/b5/text/');
	}
}