function changeLanguage() {
	document.getElementById('header_language').submit();
}

function setQuery() {
	if(document.form) {
		var query=document.form.query;
		if(!query) return;
		document.cookie='query='+query.value+'|';
	}
}

function getQuery() {
	if(document.form) {
		var query=document.form.query;
		if(!query) return;
		var start=document.cookie.indexOf('query=');
		if(start==-1) return "";
		var end=document.cookie.indexOf('|',start);
		if(end==-1) return "";
		return document.cookie.substring(start+6,end);
	}
}