<!--
function SetColor(obj, color, bgColor, id)
{
	obj.style.color = color;
	if (document.all)
		document.all.item(id).style.color = color;
	else if (document.getElementById)
		document.getElementById(id).style.color = color;

	if (bgColor)
	{
		obj.style.backgroundColor = bgColor;
		if (document.all)
			document.all.item(id).style.backgroundColor = bgColor;
		else if (document.getElementById)
			document.getElementById(id).style.backgroundColor = bgColor;
	}
}

function cld_on(obj)
{
	obj.style.color = '#9E0B0E';
	obj.style.backgroundColor = '#FFFFFF';
}

function cld_off(obj)
{
	if (obj.className && obj.className == 'cld_today')
	{
		obj.style.color = '#000000';
		obj.style.backgroundColor = '#F2F2F2';
	}
	else
	{
		obj.style.color = '#797979';
		obj.style.backgroundColor = '#F2F2F2';
	}
}

function Submit(id)
{
	if (document.forms[id])
		document.forms[id].submit();
}
// -->

<!--
// (c) 2003 Tom Dolezal
// updated: 25.1.2003 18:22

// nove okno
function win(url, width, height, resizable, scroll)
{
	if (!width)
		width = 300;
	if (!height)
		width = 300;
	if (scroll == null)
		scroll = 0;

	if (document.all)
	{
		var x = Math.round(window.screen.availWidth / 2 - width / 2);
		var y = Math.round(window.screen.availHeight / 2 - height / 2);
		if (x < 0) x = 10;
		if (y < 0) y = 10;
	}
	else
		var x = 200, y = 200;

	var features = 'height='+height+', left='+x+', location=no, menubar=no, resizable='+(resizable ? 'yes' : 'no')+', '
		+'scrollbars='+(scroll ? 'yes' : 'no')+', status=no, titlebar=no, toolbar=no, top='+y+', width='+width;
	window.open(url, '_blank', features);

	return false;
}

function hide_selections()
{
	body = document.getElementsByName('body');
	if(body[0])
		body[0].style.visibility='hidden';
}

// -->

/*function getElement(e, f) {
    if (document.layers) {
        f = (f) ? f : self
        if (f.document.layers[e])
			return f.document.layers[e]

        for (W = 0; i < f.document.layers.length; W++) {
            return(getElement(e, fdocument.layers[W]))
        }
    }
    if (document.all)
		return document.all[e]

	return document.getElementById(e)
}
*/

function olFocus(elem) {
	getElement(elem).select();
	getElement(elem).focus();
}

/**
 * Show / hide element.
 *
 * @param object $element  Element object.
 * @return void
 */
function show(element)
{
	if (element.style.display == 'block')
	{
		element.setAttribute('style', 'display:none;');
		element.style.display = 'none';
	}
	else
	{
		element.setAttribute('style', 'display:block;');
		element.style.display = 'block';
	}

	return true;
}

function getElementPosition(obj) {
	var curleft = 0;
	var curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return {curleft:curleft,curtop:curtop};
}

function legend(parentElem, elem)
{
	var e = getElement(elem).style;
	var pe = getElementPosition(parentElem);
	var sc = getElementPosition(document.getElementById('main'));

	if (e.display == 'none') {
		e.left = pe.curleft+10+'px';
		e.top = pe.curtop-sc.curtop+130+'px';
		e.display = 'block';
	} else
		e.display = 'none';
}

/**
 * Remove selected user from multi combo box.
 *
 * @param  string $element  Parent element, where need remove users from list.
 * @return void
 */
function rem_sel_user(element)
{
	var e = getElement(element);
	var e_rem;

	for (var i = e.options.length-1; i >= 0; i--)
	{
		if (e.options[i].selected == true)
		{
			e.removeChild(e.options[i]);
		}
	}

	if (e.id == 'sel-ignore')
	{
		e_rem = 'ignore';
	}
	else
	{
		e_rem = 'highlight';
	}

	if (e.options.length == 0)
	{
		var opt = document.createElement('option');
		opt.value = '';
		opt.setAttribute('id', 'u'+(e_rem == 'ignore' ? 'i' : 'h')+'0');
		opt.appendChild(document.createTextNode(''));
		getElement('sel-'+e_rem).appendChild(opt);
	}

	getElement('rem-'+e_rem).disabled = true;
	enable_reload();
}

/**
 * Reset all settings on filter and deactive it.
 *
 * @return void
 */
function reset_filter()
{
	if (confirm('Opravdu chcete vymazat filtr?'));
	{
		getElement('search-user').value = '';
		getElement('user-only').value = '';

		var e = getElement('sel-highlight');
		for (var i = e.options.length-1; i >= 0; i--)
		{
			e.removeChild(e.options[i]);
		}

		e = getElement('sel-ignore');
		for (var i = e.options.length-1; i >= 0; i--)
		{
			e.removeChild(e.options[i]);
		}

		u_filter('0');
	}
}

/**
 * Enable filter button.
 *
 * @return void
 */
function enable_reload()
{
	if (getElement('filter').value == 'Deaktivovat')
	{
		getElement('filter_reload').disabled = false;
	}
	else
	{
		getElement('filter_reload').disabled = false;
		getElement('filter_reload').style.display = '';
	}
}

/**
 * Enable / disable add user button.
 *
 * @param object $element  Object of element, which enable or disable.
 * @return void.
 */
function enable_add(element)
{
	var te = 'add-'+(element == 'h' ? 'highlight' : 'ignore');
	var e  = getElement(te);

	if (e.value.length > 0)
	{
		getElement('b'+te).disabled = false;
	}
	else
	{
		getElement('b'+te).disabled = true;
	}
}

/**
 * Show reload filter button.
 *
 * @return void
 */
var last_search;
var last_only;

/**
 * Check value filter by user only button and if value is changed, reload filter.
 *
 * @return void
 */
function check_search()
{
	var value   = getElement('search-user').value;

	check_length(getElement('search-user'), 64);

	if (value.length >= 3 && value != last_search)
	{
		if (getElement('filter').value == 'Aktivovat')
		{
			getElement('filter').disabled = false;
		}
		else
		{
			enable_reload();
		}
	}
	else
	{
		getElement('filter_reload').disabled = true;
	}

	if (last_search == undefined)
	{
		last_search = getElement('search-user').value;
	}
}

/**
 * Check value filter by user only button and if value is changed, reload filter.
 *
 * @return void
 */
function check_only()
{
	var value = getElement('user-only').value;
	var sel = getElement('sel-ignore').options;
	last_only = getElement('user-only');

	check_length(getElement('user-only'), 64);

	if (value != last_only)
	{
		for (var i = 0; i < sel.length; i++)
		{
			if (sel[i].text == value && sel[i].text != '')
			{
				alert('Uživatel je již mezi ignorovanými, nelze zobrazit pouze jeho příspěvky.');
				getElement('user-only').value = '';

				return false;
			}
		}

		if (value != '')
		{
			create_xhr();
			xhr.onreadystatechange = _c_user;
			xhr.open('GET', '/diskuze/ajax/check_user.php?user='+value);
			xhr.send(null);
		}
		else
		{
			enable_reload();
		}
	}
}

/**
 * AJAX function for check username and fill it.
 *
 * @return void
 */
function _c_user()
{
	if (xhr.readyState == 4)
	{
		if (xhr.status == 200)
		{
			var opt = document.createElement('option');
			var xml = xhr.responseXML.getElementsByTagName('user')[0];

			if (xml.hasChildNodes())
			{
				if (xhr.responseXML.getElementsByTagName('nick')[0].firstChild.textContent == undefined) // M$ fix
				{
					nick = xhr.responseXML.getElementsByTagName('nick')[0].firstChild.text;
					id   = xhr.responseXML.getElementsByTagName('id')[0].firstChild.text;
					next = xhr.responseXML.getElementsByTagName('next')[0].firstChild.text;
				}
				else
				{
					nick = xhr.responseXML.getElementsByTagName('nick')[0].firstChild.textContent;
					id   = xhr.responseXML.getElementsByTagName('id')[0].firstChild.textContent;
					next = xhr.responseXML.getElementsByTagName('next')[0].firstChild.textContent;
				}

				if (next == '1')
				{
					if (confirm('Zadaný uživatel neexistuje.'+"\n"+'Nejbližší uživatel je: '+nick+".\nChcete totoho uživatele zadat?"))
					{
						sel = getElement('sel-ignore').options;
						for (var i = 0; i < sel.length; i++)
						{
							if (sel[i].text == nick)
							{
								alert('Uživatel je již mezi ignorovanými a nelze zároveň filtrovat pouze jeho příspěvky.');
								getElement('user-only').value = '';

								return false;
							}
						}

						getElement('user-only').value = nick;
						last_only = nick;

						if (getElement('filter').value == 'Deaktivovat')
						{
							enable_reload();
						}
						else
						{
							getElement('filter').disabled = false;
						}
					}
					else
					{
						getElement('user-only').value = '';
					}
				}
				else
				{
					getElement('user-only').value = nick;
					last_only = nick;

					if (getElement('filter').value == 'Deaktivovat')
					{
						enable_reload();
					}
					else
					{
						getElement('filter').disabled = false;
					}
					//enable_reload();
				}
			}
			else if (getElement('user-only').value == '')
			{
				last_only = nick;

				if (getElement('filter').value == 'Deaktivovat')
				{
					enable_reload();
				}
				else
				{
					getElement('filter').disabled = false;
				}
				//enable_reload();
			}
			else
			{
				alert('Uživatel neexistuje.');
			}
		}
	}
}

function reload()
{
	u_filter('1');
}

function hide(element)
{
	var e = getElement(element);
	var stat = '0';
	var cl;

	if ((cl = e.getAttribute('class')) == undefined)
	{
		cl = e.getAttribute('className');
	}

	if (cl == 'hide')
	{
		e.removeAttribute('class');
		e.removeAttribute('className');
		getElement('uf-min').innerHTML = 'Minimalizovat';
		stat = '1';
	}
	else
	{
		e.setAttribute('class', 'hide');
		e.setAttribute('className', 'hide');
		getElement('uf-min').innerHTML = 'Maximalizovat';
	}

	create_xhr();
	xhr.open('GET', '/diskuze/ajax/change-filter-stat.php?stat='+stat);
	xhr.send(null);
}

/**
 * Enable button.
 *
 * @param  string $element  Button ID, which you can enable.
 * @return void
 */
function enable_clear(element)
{
	var e   = getElement('rem-'+element);
	var sel = getElement('sel-'+element);

	if (sel.options.length > 0)
	{
		e.setAttribute('disabled', '');
		e.disabled = false;
	}
}

/**
 * Return key code.
 *
 * @param  $e        Event
 * @return string
 */
function get_keycode(e)
{
	keycode = e? e.which:event.keyCode;

	return keycode;
}

/**
 * Delete users on combo box if press delete key.
 *
 * @param object $element  ID of paranet combo box, where delete user.
 * @return void
 */
function del_user(element, e)
{
	var keycode = get_keycode(e);

	// key code: 46 = DELETE
	if (keycode == '46')
	{
		/*for (var i = element.options.length-1; i >= 0; i--)
		{
			if (element.options[i].selected == true)
			{
				element.removeChild(element.options[i]);
			}
		}*/
		rem_sel_user(element.id);
	}
}

/**
 * Add user to ignored combo box.
 *
 * @param integer user_id  User ID.
 * @param sring   nick     Nickname.
 * @return void
 */
function add_ignore(user_id, nick)
{
	var opt = document.createElement('option');
	var err = false;
	var mes = '';

	if (check_in_combo('sel-ignore', nick) == true)
	{
		mes = 'Uživatel ve výběru již existuje.';
		err = true;
	}

	if (err === false && getElement('user-only').value == nick)
	{
		mes = 'Uživatele nelze přidat mezi ignorované.'+"\n"+"Je již zadán v poli 'Zobrazit jen uživatele'.";
		err = true;
	}

	if (err === true)
	{
		alert(mes);

		return false;
	}

	if (confirm('Opravdu ignorovat uživatele?'))
	{
		remove_empty('sel-ignore');

		opt.value = user_id;
		opt.setAttribute('id', 'ui'+user_id);
		opt.appendChild(document.createTextNode(nick));
		getElement('sel-ignore').appendChild(opt);
		reload();

		if (getElement('filter').value == 'Aktivovat')
		{
			getElement('filter').disabled = false;
		}
	}
}

/**
 * Remove empty value in combo box.
 *
 * @param string $element  ID of combo box.
 * @return void
 */
function remove_empty(element)
{
	var e_name;

	if (element == 'sel-ignore')
	{
		e_name = 'ui0';
	}
	else
	{
		e_name = 'uh0';
	}

	if (getElement(e_name) != null)
	{
		sel = getElement(element);
		sel.removeChild(sel.options[getElement(e_name).index]);
	}
}

/**
 * Add user to highlighted user combo box.
 *
 * @param  string $user_id  ID user.
 * @param  string $nick     Nickname.
 * @return void
 */
function add_high(user_id, nick)
{
	var opt = document.createElement('option');

	if (check_in_combo('sel-highlight', nick) == true)
	{
		alert('Uživatel ve výběru již existuje.');

		return false;
	}

	if (check_in_combo('sel-ignore', nick) == true)
	{
		alert('Uživatele nelze přidat mezi zvýrazněné.'+"\n"+"Je již zadán mezi ignorovanými uživateli.");

		return false;
	}

	remove_empty('sel-highlight');

	opt.value = user_id;
	opt.setAttribute('id', 'uh'+user_id);
	opt.appendChild(document.createTextNode(nick));
	getElement('sel-highlight').appendChild(opt);
	reload();
}

/**
 * Add user to only user filter.
 *
 * @param  string $nick  Nickname.
 * @return void
 */
function add_only(nick)
{
	if (check_in_combo('sel-ignore', nick) == true)
	{
		alert('Uživatele nelze přidat.'+"\n"+'Je už označen jako ignorovaný.');
			return false;
	}

	getElement('user-only').value = nick;
	reload();
}

function check_in_combo(combo, value)
{
	var sel = getElement(combo).options;

	for (var i = 0; i < sel.length; i++)
	{
		if (sel[i].text == value)
		{
			return true;
		}
	}

	return false;
}

// XHR functions {{{
var xhr;
var pElem;

function create_xhr() {
	if (window.XMLHttpRequest)
	{
		xhr = new XMLHttpRequest();
	}
	else if (window.ActiveXObject)
	{
		xhr = new ActiveXObject('Microsoft.XMLHTTP');
	}
	else
	{
		alert('Nelze vytvořit XMLHttpRequest objekt.');
	}
}

function show_xhr_error()
{
	alert('Chyba objektu XMLHttpRequest'+"\n"+'Kod: '+xhr.status+"\n"+'Chyba: '+xhr.text);
}

// get hostname {{{
function host(ip, parentElement) {
	pElem = getElement('id'+parentElement);
	create_xhr();
	xhr.onreadystatechange = get_hostname;
	xhr.open('GET', '/get_hostname.php?ip='+ip, true);
	xhr.send(null);
}

function get_hostname() {
	if (xhr.readyState == 4) {
		if (xhr.status == 200) {
			pElem.innerHTML = xhr.responseText;
			pElem.title = '';
			pElem.style.cursor = 'auto';
		} else {
			show_xhr_error();
		}
	}
}
// }}}

// add new expletive word {{{
function add_wrong()
{
	if (getElement('new_wrong').value.length > 3)
	{
		create_xhr();
		var url = 'word='+getElement('new_wrong').value;

		xhr.onreadystatechange = _add_wrong;
		xhr.open('POST', '/diskuze/ajax/add-expletive.php');
		xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;");
		xhr.send(url);
	}
	else
	{
		getElement('add_result').innerHTML = 'Slovo musí mít nejméně 4 znaky.';
	}
}

function _add_wrong()
{
	if (xhr.readyState == 4)
	{
		if (xhr.status == 200)
		{
			getElement('add_result').innerHTML = xhr.responseText;
			getElement('new_wrong').value = '';
		}
		else
		{
			show_xhr_error();
		}
	}
}
// }}}

// user search functions {{{
var user;
var sel;
function add_user(element)
{
	var id = element.name;

	if (id == 'add_highlight')
	{
		user = getElement('add-highlight');
		sel  = getElement('sel-highlight');

		if (check_in_combo('sel-ignore', user.value))
		{
			alert('Uživatele nelze přidat mezi zvýrazněné.'+"\n"+"Je již zadán mezi ignorovanými uživateli.");
			user.value = '';

			return false;
		}
	}
	else
	{
		user = getElement('add-ignore');
		sel  = getElement('sel-ignore');

		if (check_in_combo('sel-highlight', user.value))
		{
			alert('Uživatele nelze přidat mezi ignorované.'+"\n"+"Je již zadán mezi zvýrazněnými uživateli.");
			user.value = '';

			return false;
		}
	}

	if (sel.options.length >= 50)
	{
		alert('Překročen maximální počet zadaných uživatelů (limit = 50)');

		return false;
	}

	if (check_in_combo(sel.id, user.value))
	{
		alert('Uživatel již ve výběru existuje');
		user.value = '';

		return false;
	}

	if (user.value != '')
	{
		create_xhr();
		xhr.onreadystatechange = _check_user;
		xhr.open('GET', '/diskuze/ajax/check_user.php?user='+user.value, true);
		xhr.send(null);
	}
}

function _check_user()
{
	if (xhr.readyState == 4)
	{
		if (xhr.status == 200)
		{
			var opt = document.createElement('option');

			if (xhr.responseXML.getElementsByTagName('user')[0].hasChildNodes())
			{
				var uid;
				if (xhr.responseXML.getElementsByTagName('id')[0].firstChild.textContent == undefined) // M$ fix
				{
					uid   = xhr.responseXML.getElementsByTagName('id')[0].firstChild.text;
					value = xhr.responseXML.getElementsByTagName('nick')[0].firstChild.text;
					nick  = xhr.responseXML.getElementsByTagName('nick')[0].firstChild.text;
				}
				else // valid browsers
				{
					uid   = xhr.responseXML.getElementsByTagName('id')[0].firstChild.textContent;
					value = xhr.responseXML.getElementsByTagName('nick')[0].firstChild.textContent;
					nick  = xhr.responseXML.getElementsByTagName('nick')[0].firstChild.textContent;
				}

				remove_empty(sel.id);

				opt.value = value
				opt.setAttribute('id', 'u'+(sel.id == 'sel-highlight' ? 'h' : 'i')+uid);
				opt.appendChild(document.createTextNode(nick));
				sel.appendChild(opt);
				user.value = '';

				if (getElement('filter').value == 'Aktivovat')
				{
					getElement('filter').disabled = false;
				}
				else
				{
					enable_reload();
				}

			}
			else
			{
				alert('Uživatel neexistuje.');
			}
		}
		else
		{
			show_xhr_error();
		}
	}
}
// }}}

// enable / disable user filter {{{
function _user_filter()
{
	if (xhr.readyState == 4)
	{
		if (xhr.status == 200)
		{
			document.location = getElement('forum').action;
		}
		else
		{
			show_xhr_error();
		}
	}
}

/**
 * Active / deaktive user filter.
 *
 * @param integer $status  New filter status.
 * <ul>
 *	<li><strong>0</status> - disable filter,</li>
 *	<li><strong>1</strong> - enable filter.</li>
 * </ul>
 * @return void
 */
function u_filter(statue)
{
	var filter_div = getElement('u-filter');
	var stat;
	var xml;
	var sel;

	if (statue == '0')
	{
		filter_div.setAttribute('class', 'uf-deact');
		filter_div.setAttribute('className', 'uf-deact');
		getElement('filter').value = 'Aktivovat';
		getElement('filter-status').innerHTML = 'neaktivní';
		stat = '0';
	}
	else
	{
		filter_div.setAttribute('class', 'uf-act');
		filter_div.setAttribute('className', 'uf-act');
		getElement('filter').value = 'Deaktivovat';
		getElement('filter-status').innerHTML = 'aktivní';
		stat = '1';
	}

	xml = '<root>';
	xml += '<status>'+stat+'</status>';
	xml += '<search'+((getElement('search-user').value == '') ? '/>' : ('>'+getElement('search-user').value+'</search>'))
	xml += '<only'+((getElement('user-only').value == '') ? '/>' : ('>'+getElement('user-only').value+'</only>'));

	sel  = getElement('sel-highlight').options;
	if (sel.length > 0)
	{
		xml += '<h_user>';

		for (var i = 0; i < sel.length; i++)
		{
			xml += '<user id="'+sel[i].id+'">'+sel[i].text+'</user>';
		}

		xml += '</h_user>';
	}
	else
	{
		xml += '<h_user/>';
	}

	sel  = getElement('sel-ignore').options;
	if (sel.length > 0)
	{
		xml += '<i_user>';

		for (var i = 0; i < sel.length; i++)
		{
			xml += '<user id="'+sel[i].id+'">'+sel[i].text+'</user>';
		}

		xml += '</i_user>';
	}
	else
	{
		xml += '<i_user/>';
	}

	xml += '</root>';

	create_xhr();
	xhr.onreadystatechange = _user_filter;
	xhr.open('POST', '/diskuze/ajax/uf-enable.php');
	xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;");
	xhr.send(xml);
}
// }}}

// function close_perm_info() {{{
/**
 * Mark all admins info as readed and remove it.
 *
 * @return void
 */
function close_perm_info()
{
	create_xhr();
	xhr.onreadystatechange = _close_perm_info;
	xhr.open('GET', '/diskuze/ajax/close-perm-info.php');
	xhr.send(null);
}

function _close_perm_info()
{
	if (xhr.readyState == 4)
	{
		if (xhr.status == 200)
		{
			var elem = getElement('active-info');

			if (elem != undefined)
			{
				var pElem = getElement('main-form');
				pElem.removeChild(elem);
			}
		}
		else
		{
			show_xhr_error();
		}
	}
}
// }}}

// }}}

// user tip form check functions {{{
function set_error_elem(elem, error)
{
	var lab    = getElement('l-'+elem.id);
    var cls    = '';
    var newCls = '';

	if (error == 'y') {
	   if (navigator.userAgent.match(/MSIE/)) {
	        cls    = elem.getAttribute('className');
            newCls = (cls != '' || cls != null ? cls + ' ' : '') + 'err';
           
            elem.setAttribute('className', newCls);
            lab.setAttribute('className', newCls);
       } else {
	        cls    = elem.getAttribute('class');
            newCls = cls + (cls != '' || cls != null ? ' ' : '') + 'err';

            if (cls == '' || cls == null || (cls != '' && cls.match('err') == null)) {
                elem.setAttribute('class', newCls);
                lab.setAttribute('class', newCls);
            }
       }
	} else if (error == 'n') {
	   if (navigator.userAgent.match(/MSIE/)) {
	        var cls = elem.getAttribute('className');

            if (cls != null) {
                newCls = cls.replace('err', '');
            }
           
            if (newCls == '') {
                elem.removeAttribute('className');
                lab.removeAttribute('className');
            } else {
                elem.setAttribute('className', newCls);
                lab.setAttribute('className', newCls);
            }
	   } else {
	        var cls = elem.getAttribute('class');

            if (cls != null) {
                newCls = cls.replace('err', '');
            }
           
            if (newCls == '') {
                elem.removeAttribute('class');
                lab.removeAttribute('class');
            } else {
                elem.setAttribute('class', newCls);
                lab.setAttribute('class', newCls);
            }
	   }
	}

	return true;
}

function check_combo(element)
{
	var value = element.options[element.selectedIndex].value;

	if (value == '')
	{
		set_error_elem(element, 'y');
	}
	else
	{
		set_error_elem(element, 'n');
	}
}

function check_date(element)
{
	var value = element;

	if (value != '')
	{
		if (element.value.match(/^(([0,1,2][0-9]|3[0,1])|[0-9])\.((0[0-9]|1[0,1,2])|[0-9])\.(2[0-9]{3})$/) == null)
		{
			set_error_elem(value, 'y');
		}
		else
		{
			set_error_elem(value, 'n');
		}
	}
}

function check_time(element)
{
	var value = element;

	if (value != '')
	{
		if (element.value.match(/^(([0-1][0-9]|[2][0-3])|([0-9])):(([0-5][0-9])){1,2}$/) == null)
		{
			set_error_elem(value, 'y');
		}
		else
		{
			set_error_elem(value, 'n');
		}
	}
}

function check_number(element)
{
	element.value = element.value.replace(/,/, ".");

	if (element.value == '' || isNaN(new Number(element.value)))
	{
		set_error_elem(element, 'y');
		return false;
	}
	else
	{
		set_error_elem(element, 'n');
	}

	return true;
}

function equal()
{
	var odd = getElement('overall_odds').value;
	var stake = getElement('stake').value;
	var eq = getElement('return');

    if (! isNaN(Number(stake)) && (stake < 0 || stake > 10)) {
        alert('Vklad může být od 1 do 10 bodů.');
        return false;
    } else if (!isNaN(Number(odd)) && !isNaN(Number(stake))) {
		eq.value = odd * stake;
	} else {
		eq.value = '';
		return false;
	}

	return true;
}

function check_score(element)
{
	/*if ((element.value.match(/^[0-9]{1,2}$/) == null) || (element.value.match(/^[0-9]{1,}:[0-9]{1,}$/) == null))*/
    if (element.value.match(/^((\d+)(\:\d+)?)$/) == null)
	{
		set_error_elem(element, 'y');
	}
	else
	{
		set_error_elem(element, 'n');
	}

	return true;
}


function check_form()
{
	equal();
}
// }}}

var streamsTimeout = null;
var visible = null;
 
function showStreams(id)
{
	document.getElementById('streams'+id).style.display = 'block';
	if (streamsTimeout != null) clearTimeout(streamsTimeout);
	if (visible != null && visible != id) doHideStreams(visible);
	visible = id;
}

function hideStreams(id)
{
	streamsTimeout = setTimeout('doHideStreams('+id+')', 300);
}

function doHideStreams(id)
{
	getElement('streams'+id).style.display = 'none';
}