$(document).ready(function(){
			$('#slider').cycle({
				fx: 'fade',
				speed: 1000,
				timeout: 3000
			});
		});

function select_material(elem) {
	if (elem.value != '' ) {
		document.getElementById('type').style.display = 'block';
		document.getElementById('producer').style.display = 'none';
		document.getElementById('category').style.display = 'none';
	}
	else {
		document.getElementById('type').style.display = 'none';
		document.getElementById('producer').style.display = 'block';
		document.getElementById('category').style.display = 'none';
	}
	jsAjaxUtil.InsertDataToNode('/catalog/ajax/type.php?id='+elem.value, 'type', true);
	return false;
}

function select_type(elem) {
	if (elem.value != '' ) {
		document.getElementById('producer').style.display = 'block';
		document.getElementById('category').style.display = 'none';
	}
	else {
		document.getElementById('producer').style.display = 'none';
		document.getElementById('category').style.display = 'none';
	}
	jsAjaxUtil.InsertDataToNode('/catalog/ajax/producer.php?id='+elem.value, 'producer', true);
	return false;
}

function select_producer(elem) {
	if (elem.value != '' ) {
		document.getElementById('category').style.display = 'block';
	}
	else {
		document.getElementById('category').style.display = 'none';
	}
	jsAjaxUtil.InsertDataToNode('/catalog/ajax/category.php?id='+elem.value, 'category', true);
	return false;
}

function changeDateClass(block) {
	var span = block.getElementsByTagName('span');
	for (var i=0; i < span.length; i++) {
		if (span[i].className == 'date_gray') span[i].className = 'date_red';
		else span[i].className = 'date_gray';
	}
}

function show_hide(elements, id) {
	var elem = document.getElementById(id);
	var display = elem.style.display;
	if (display == 'none' || !display) {
		elem.style.display = 'block';
		elements.parentNode.style.background = 'url(/img/level3_bottom.jpg) no-repeat 0 2px';
	}
	else {
		elem.style.display = 'none';
		elements.parentNode.style.background = 'url(/img/level3.jpg) no-repeat 0 2px';
	}
}

function clickProducer(elem) {
    parents = elem.parentNode;
    for (aNod = parents.firstChild; aNod != null; aNod = aNod.nextSibling) {
    	if (aNod.tagName == 'UL' && !elem.className) { elem.className = 'active'; aNod.style.display = 'block'; }
    	else if (aNod.tagName == 'UL' && elem.className == 'active') { elem.className = ''; aNod.style.display = 'none'; }
    }
}

function clickCategory(elem) {
    parents = elem.parentNode;
    for (aNod = parents.firstChild; aNod != null; aNod = aNod.nextSibling) {
    	if (aNod.tagName == 'UL' && !elem.className) { elem.className = 'active'; aNod.style.display = 'block'; }
    	else if (aNod.tagName == 'UL' && elem.className == 'active') { elem.className = ''; aNod.style.display = 'none'; }
    }
}

function change_gamma(path) {
	var gamma = document.getElementById('gamma_picture');
	gamma.src = path;
}