/*  FUNTION THAT REDIRECT A PAGE TO ITSELF BUT CHANGING THE LANGUAGE. THE LANG PARAMETER REFERS TO THE ACTUAL LANGUAGE OF THE SITE. */

function redirect(page,lang){
	page = page+".php";
	var query = window.location.search.substring(0).split("&");
	if(query.length > 1){
		var result = page;
		for (i=0; i< query.length-1; i++){
			if(i == 0)
				result=result+query[i];
			else
				result=result+"&"+query[i];
		}
		if(lang == 'DE')
			result = result+"&lang=DE";
		else
			result = result+"&lang=EN";
	}
	else
		if(lang == 'DE')
			result= page+"?lang=DE";
		else
			result= page+"?lang=EN";
			
	window.location = result;
 }