//changeLang

function changeLang (lang, url){
	
	var seconds = 31536000;
	var date = new Date();
	date.setTime(date.getTime()+(seconds*1000));
	var expires = "; expires="+date.toGMTString();
	
	document.cookie = "_cpl=" + lang + expires + "; path=/";
		
	if (url){
		window.location = url;
	}else{
		window.location = window.location;
	}
}