function selectLanguage(new_language)
	{
	var obj = new URL(location.href);
	var tmpURL = obj.getPath().split("/");
	var actual_language = "";
	for(i=0;i<= tmpURL.length-1; i++)
		{if (tmpURL[i].length == 2) 
			{actual_language = tmpURL[i];  break;}
		}
	location.href = location.href.replace("/"+actual_language+"/", "/"+new_language+"/");
	}


function URL(url){
	if(url.length==0) eval('throw "Invalid URL ['+url+'];');
	this.url=url;
	this.port=-1;
	this.query=(this.url.indexOf('?')>=0)?this.url.substring(this.url.indexOf('?')+1):'';
	if(this.query.indexOf('#')>=0) this.query=this.query.substring(0,this.query.indexOf('#'));
	this.protocol='';
	this.host='';
	var protocolSepIndex=this.url.indexOf('://');
	if(protocolSepIndex>=0){
		this.protocol=this.url.substring(0,protocolSepIndex).toLowerCase();
		this.host=this.url.substring(protocolSepIndex+3);
		if(this.host.indexOf('/')>=0) this.host=this.host.substring(0,this.host.indexOf('/'));
		var atIndex=this.host.indexOf('@');
		if(atIndex>=0){
			var credentials=this.host.substring(0,atIndex);
			var colonIndex=credentials.indexOf(':');
			if(colonIndex>=0){
				this.username=credentials.substring(0,colonIndex);
				this.password=credentials.substring(colonIndex);
			}else{
				this.username=credentials;
			}
			this.host=this.host.substring(atIndex+1);
		}
		var portColonIndex=this.host.indexOf(':');
		if(portColonIndex>=0){
			this.port=this.host.substring(portColonIndex);
			this.host=this.host.substring(0,portColonIndex);
		}
		 
		this.file=this.url.substring(protocolSepIndex+3);
		this.file=this.file.substring(this.file.indexOf('/'));
		this.fileName=this.file.substring(this.file.lastIndexOf('/')+1);
	}else{
		this.file=this.url;
	}
	if(this.file.indexOf('?')>=0) this.file=this.file.substring(0, this.file.indexOf('?'));
	var refSepIndex=url.indexOf('#');
	if(refSepIndex>=0){
		this.file=this.file.substring(0,refSepIndex);
		this.reference=this.url.substring(this.url.indexOf('#'));
	}else{
		this.reference='';
	}
	this.path=this.file;
	if(this.query.length>0) this.file+='?'+this.query;
	if(this.reference.length>0) this.file+='#'+this.reference;

	this.getPort=getPort;
	this.getQuery=getQuery;
	this.getProtocol=getProtocol;
	this.getHost=getHost;
	this.getUserName=getUserName;
	this.getPassword=getPassword;
	this.getFile=getFile;
	this.getFileName=getFileName;
	this.getReference=getReference;
	this.getPath=getPath;
	this.getArgumentValue=getArgumentValue;
	this.getArgumentValues=getArgumentValues;
	this.toString=toString;

	/* Returns the port part of this URL, i.e. '8080' in the url 'http://server:8080/' */
	function getPort(){
		return this.port;
	}

	/* Returns the query part of this URL, i.e. 'Open' in the url 'http://server/?Open' */
	function getQuery(){
		return this.query;
	}

	/* Returns the protocol of this URL, i.e. 'http' in the url 'http://server/' */
	function getProtocol(){
		return this.protocol;
	}

	/* Returns the host name of this URL, i.e. 'server.com' in the url 'http://server.com/' */
	function getHost(){
		return this.host;
	}

	/* Returns the user name part of this URL, i.e. 'joe' in the url 'http://joe@server.com/' */
	function getUserName(){
		return this.username;
	}

	/* Returns the password part of this url, i.e. 'secret' in the url 'http://joe:secret@server.com/' */
	function getPassword(){
		return this.password;
	}

	/* Returns the file part of this url, i.e. everything after the host name. */
	function getFile(){
		return this.file;
	}

	/* Returns the file part of this url, i.e. 'file.html#bookmark' in the url 'http://server/file.html#bookmark' */
	function getFileName(){
		return this.fileName;
	}

	/* Returns the reference of this url, i.e. 'bookmark' in the url 'http://server/file.html#bookmark' */
	function getReference(){
		return this.reference;
	}

	/* Returns the file path of this url, i.e. '/dir/file.html' in the url 'http://server/dir/file.html' */
	function getPath(){
		return this.path;
	}

	/* Returns the FIRST matching value to the specified key in the query.
	   If the url has a non-value argument, like 'Open' in '?Open&bla=12', this method
	   returns the same as the key: 'Open'...
	   The url must be correctly encoded, ampersands must encoded as &amp;
	   I.e. returns 'value' if the key is 'key' in the url 'http://server/?Open&amp;key=value' */
	function getArgumentValue(key){
		var a=this.getArgumentValues();
		if(a.length<1) return '';
		for(i=0;i<a.length;i++){
			if(a[i][0]==key) return a[i][1];
		}
		return '';
	}

	/* Returns all key / value pairs in the query as a two dimensional array */
	function getArgumentValues(){
		var a=new Array();
		var b=this.query.split('&amp;');
		var c='';
		if(b.length<1) return a;
		for(i=0;i<b.length;i++){
			c=b[i].split('=');
			a[i]=new Array(c[0],((c.length==1)?c[0]:c[1]));
		}
		return a;
	}

	/* Returns a String representation of this url */
	function toString(){
		return this.url;
	}
}