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];}
}

function formsubmit() { 
	window.open = document.search.submit();
}

function switchLang(currLang, tarLang){

	var currPath = document.URL.toString();
	var lang = window.location.hostname;
	
	var myUrl = location.href; 
	var mySub1 = "/"; 
	
	var head, toPath;
	toPath = "";
	
	if(currPath.search('.htm#') != -1){ 
		//alert(currPath);
		myVar1 = rightFromSubStringToEndOfFullString(location.href, "#"); 
		//alert(myVar1);
		if(myVar1 == ""){
			//alert(myVar1);
			currPath = currPath.replace(".htm#", ".htm");
			//alert(currPath);
		}
	} 
	
	//english to chinese version
	if (currLang==1)
	{		
		if (tarLang==2)
		{
			if (bilang)
			{
				currPath = currPath.replace("/eng/", "/chi/");
				//alert("Traditional Chinese Version is not available at the moment.");
				toPath = currPath;
				location = toPath;
			}
			else
			{
				myVar = rightFromSubStringToEndOfFullString(myUrl, mySub1); 

				currPath = currPath.replace(myVar, "");
				currPath = currPath.replace("/eng/", "/chi/");
				toPath = currPath;
				location = toPath;
			}
		}
		else if (tarLang==3)
		{
			if (bilang)
			{
				currPath = currPath.replace("/eng/", "/chi/");
				if (document.URL.toString().indexOf('westcomzivo')!=-1){ 
					currPath = currPath.replace(lang, "common.westcomzivo.com/gb/" + lang);
				}
				else
				{
					currPath = currPath.replace(lang, "sc.info.gov.hk/gb/" + lang);
				}
				//alert("Simplified Chinese Version is not available at the moment.");
				toPath = currPath;
				location = toPath;
			}
			else
			{
				myVar = rightFromSubStringToEndOfFullString(myUrl, mySub1); 

				currPath = currPath.replace(myVar, "");
				currPath = currPath.replace("/eng/", "/chi/");
				if(document.URL.toString().search('sc.info.gov.hk/gb/') == -1){ 
					currPath = currPath.replace("common.westcomzivo.com/gb/","");
				}
				else
				{
					currPath = currPath.replace("sc.info.gov.hk/gb/","");
				}	
				toPath = currPath;
				location = toPath;
			}
		}
	}
	
	//chinese to english version
	else if (currLang==2)
	{		
		if (tarLang==1)
		{
			if (bilang)
			{
				currPath = currPath.replace("/chi/", "/eng/");
				toPath = currPath;
				location = toPath;
			}
			else
			{
				myVar = rightFromSubStringToEndOfFullString(myUrl, mySub1); 

				currPath = currPath.replace(myVar, "");
				currPath = currPath.replace("/chi/", "/eng/");
				toPath = currPath;
				location = toPath;
			}
		}
		else if (tarLang==3)
		{
			if (document.URL.toString().indexOf('westcomzivo')!=-1){ 
				currPath = currPath.replace(lang, "common.westcomzivo.com/gb/" + lang);
			}
			else
			{
				currPath = currPath.replace(lang, "sc.info.gov.hk/gb/" + lang);
			}
			//alert(currPath);
			toPath = currPath;
			location = toPath;			
		}
	}
	
	
	else if (currLang==3)
	{
		if (tarLang==1)
		{
			if (bilang)
			{
				currPath = currPath.replace("/chi/", "/eng/");
				if(document.URL.toString().search('sc.info.gov.hk/gb/') == -1){ 
					currPath = currPath.replace("common.westcomzivo.com/gb/","");
				}
				else
				{
					currPath = currPath.replace("sc.info.gov.hk/gb/","");
				}	
				toPath = currPath;
				location = toPath;
			}
			else
			{
				myVar = rightFromSubStringToEndOfFullString(myUrl, mySub1); 

				currPath = currPath.replace(myVar, "");
				currPath = currPath.replace("/chi/", "/eng/");
				if(document.URL.toString().search('sc.info.gov.hk/gb/') == -1){ 
					currPath = currPath.replace("common.westcomzivo.com/gb/","");
				}
				else
				{
					currPath = currPath.replace("sc.info.gov.hk/gb/","");
				}	
				toPath = currPath;
				location = toPath;
			}
		}
		else if (tarLang==2)
		{
			if (document.URL.toString().indexOf('westcomzivo')!=-1){ 
				currPath = currPath.replace("common.westcomzivo.com/gb/","");
			}
			else
			{
				currPath = currPath.replace("sc.info.gov.hk/gb/","");
			}	
			toPath = currPath;
			location = toPath;
		}
	}
	
	//location = toPath;	
}

function rightFromSubStringToEndOfFullString(fullString, subString) { 
	
	if (fullString.lastIndexOf(subString) == -1) { 
		return ""; 
	} else { 
		return fullString.substring(fullString.lastIndexOf(subString)+1, fullString.length); 
	} 
}