function setLang(langID) {
name = "langID";
value = langID;

var date = new Date();
date.setTime(date.getTime()+(31*24*60*60*1000));
var expires = "; expires="+date.toGMTString();

document.cookie = name+"="+value+expires+"; path=/";

		php_script_url = 'block_set_lang.php';
		php_script = document.createElement('script');
		php_script.src = php_script_url;
		document.getElementsByTagName('head')[0].appendChild(php_script);
}