// JavaScript Document
function changelang(langid)
{
	if(langid=="en")
	   {
		   var address=document.location.href;
		    var searchstr='.php';
		   var lnavar='?ln=ch';
		   
		  var searchres=address.search(searchstr);
		  
		  var mylength=searchres+4;
		  var strlength=address.length;
		  
		  if(mylength==strlength)
		  {
			  add='?ln=en';
			  var newaddress=address.concat(add);
		  }
     		else if(address.charAt(mylength)=='#')	 
			{
				 var replacestr=address.substr(address.charAt(mylenth),address.length);
			  var newaddress=address.replace(replacestr,"?ln=en");
			}
		  else if(address.charAt(mylength)=='?')
		  {
              add='?ln=ch';
			  var newaddress=address.replace("?ln=ch","?ln=en");
		  }
		   window.location = newaddress;
	   }
	else if(langid=="ch")
	   {
		   var address=document.location.href;
		   //var ind=( address.indexof('.php'));
		   var searchstr='.php';
		   
		  var searchres=address.search(searchstr);
		
		  var mylength=searchres+4;
		  
		  var strlength=address.length;
		  if(mylength==strlength)
		  {
			  add='?ln=ch';
			  var newaddress=address.concat(add);
		  }
		 else if(address.charAt(mylength)=='#')	 
			{ 
				 var replacestr=address.substr(address.charAt(mylength),address.length);
			  var newaddress=address.replace(replacestr,"?ln=ch");
			}
		  else if(address.charAt(mylength)=='?')
		  {
              add='?ln=en';
			  var newaddress=address.replace("?ln=en","?ln=ch");
		  }
		   window.location = newaddress;
	   }
}