function light(number) {
	document.getElementById('left_menu_element' + number).style.color = "#E88223";
	document.getElementById('left_menu_arrow' + number).style.backgroundImage = "url(http://www.tnu.in.ua/templates/Default/images/menu_arrow_orange.png)";
}

function darken(number) {
	document.getElementById('left_menu_element' + number).style.color = "#125F82";
	document.getElementById('left_menu_arrow' + number).style.backgroundImage = "url(http://www.tnu.in.ua/templates/Default/images/menu_arrow.gif)";
}

function log_out() {
	ht = document.getElementsByTagName("html");
	ht[0].style.filter = "progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)";
	if (confirm('Вы действительно хотите выйти?')) {
		return true;
	} else {
		ht[0].style.filter = "";
		return false;
	}
}

function rand_photo(id) {
	ajax = new dle_ajax();
	ajax.onShow();
	ajax.requestFile = '/engine/ajax/global_ajax.php?do=rand_photo' + '&id='
			+ id;
	ajax.onCompletion = function() {
		eval(ajax.response)
	};
	ajax.sendAJAX();
}
function rate(rating, newsid) {
	var i = 5;
	while (i > 0) {
		if (rating >= i) {
			document.getElementById("rate_" + i+"_"+newsid).className = "yes_rate";
		} else {
			document.getElementById("rate_" + i+"_"+newsid).className = "no_rate";
		}
		i = i - 1;
	}
}
function rate_out(newsid, rating) {
	var i = 5;
	while (i > 0) {
		if (rating >= (i-0.5)) {
			document.getElementById("rate_" + i+"_"+newsid).className = "still_rate";
		} else {
			document.getElementById("rate_" + i+"_"+newsid).className = "no_rate";
		}
		i = i - 1;
	}
}
function rate_back2(newsid) {
		document.getElementById("rate_2_"+newsid).className = "t_up";
}
function rate_back1(newsid) {
	document.getElementById("rate_1_"+newsid).className = "t_down";
}
function t_up(newsid) {

	document.getElementById("rate_2_"+newsid).className = "t_up2";
}
function t_down(newsid) {

	document.getElementById("rate_1_"+newsid).className = "t_down2";
}
function clean_search() {
	document.getElementById('search_input').value = '';
}

function put_search() {
	if (document.getElementById('search_input').value == '') {
		document.getElementById('search_input').value = 'Поиск по сайту';
	}
}