function input_focus(id) {
    $("#l" + id).addClass('lcurrent');
}

function input_blur(id) {
    $("#l" + id).removeClass('lcurrent');
}

function sendContact() {
    // check for email
    var email = $("#email").val();
    var filter = /^([a-zA-Z0-9_.-])+@(([a-zA-Z0-9-])+.)+([a-zA-Z0-9]{2,4})+$/;
    if (!filter.test(email)) {
        $("#email-error").slideDown(500);
        $("#email").focus();
        return false;
    }
    else
        $("#email-error").slideUp(500);

    // check for message
    var msg = $("#message").val();
    if (msg.length == 0) {
        $("#message-error").slideDown(500);
        $("#message").focus();
        return false;
    }
    else
        $("#message-error").slideUp(500);

    // check for captcha
    var captcha = $("#captcha").val();
    if (captcha != captcha_c) {
        $("#captcha-error").slideDown(500);
        $("#captcha").focus();
        return false;
    }
    else
        $("#captcha-error").slideUp(500);

    var data = $("#contact_form > form").serialize();

    $.ajax({
        type: "POST",
        url: "sendContact.php",
        data: data,
        cache: false,
        success: function (msg) {
        }
    });

    $("#contact_form").fadeOut(1000, function () {
        $("#message_sent").slideDown(500);
    });


    return false;
}

var captcha_a = Math.ceil(Math.random() * 10);
var captcha_b = Math.ceil(Math.random() * 10);
var captcha_c = captcha_a + captcha_b;
function generate_captcha(id) {
    var id = (id) ? id : 'lcaptcha';
    $("#" + id).html(captcha_a + " + " + captcha_b + " = ");
}

var jGalleryTimer = 0;
var jGalleryFirstStart = true;
var jGallery_action = false;
function jGallery(id, visible, timeInterval, transitionInterval) {
    var visible = (visible) ? visible : 1;
    var timeInterval = (timeInterval) ? timeInterval : 5000;
    var transitionInterval = (transitionInterval) ? transitionInterval : 200;
    var w = (w) ? w : $("." + id + "-gallery-div :first").width();
    var cnt = $("#gallery-" + id + "-holder > div").size();

    if (jGalleryTimer) {
        clearInterval(jGalleryTimer);
        jGalleryTimer = 0;
    }

    if (!jGalleryFirstStart) {
        if (!jGallery_move(id, cnt, -1, w, visible, transitionInterval))
            jGallery_restart(id, cnt, transitionInterval);
    }

    jGalleryFirstStart = false;

    jGalleryTimer = setInterval(function () { jGallery(id, visible, timeInterval, transitionInterval); }, timeInterval);
}

function jGallery_move(id, cnt, dir, w, visible, transitionInterval) {
    if (jGallery_action)
        return false;

    var curr = document.getElementById("gallery-" + id + "-holder").style.left;
    curr = parseFloat(curr);

    if (isNaN(curr))
        curr = 0;
    if (dir > 0) {
        if (curr >= 0)
            return false;
    }
    else {
        if (curr + cnt * w - visible * w <= 0)
            return false;
    }

    jGallery_action = true;
    var offset = w;

    if (dir < 0)
        dir = "-";
    else
        dir = "+";

    $("#gallery-" + id + "-holder").animate(
		{ left: dir + "=" + offset + "px" },
		{ queue: true, duration: transitionInterval, complete: function () { jGallery_action = false; } }
	);

    return true;
}

function jGallery_restart(id, cnt, transitionInterval) {
    if (jGallery_action)
        return false;

    var curr = document.getElementById("gallery-" + id + "-holder").style.left;
    curr = parseFloat(curr);

    if (isNaN(curr))
        curr = 0;
    if (curr >= 0)
        return false;

    jGallery_action = true;
    var offset = curr * (-1);

    $("#gallery-" + id + "-holder").animate(
		{ left: "+=" + offset + "px" },
		{ queue: true, duration: transitionInterval * cnt, complete: function () { jGallery_action = false; } }
	);

    return true;
}

var jMenu_timeout = 500;
var jMenu_effectTime = 200;
var jMenu_closetimer = 0;
var jMenu_ddmenuitem = 0;
var jMenu_openid = 0;
var jMenu_action = false;
function jMenu_open() {
    jMenu_canceltimer();

    if ($("a", this).html() == jMenu_openid)
        return;

    if (jMenu_action)
        return;

    jMenu_close();

    if ($("ul", this).size() == 0)
        return;

    jMenu_action = true;
    jMenu_ddmenuitem = $(this).find('ul').slideDown(jMenu_effectTime, function () { jMenu_action = false; });
    jMenu_openid = $("a", this).html();
    if (document.getElementById('ul'))
        document.getElementById('ul').className = 'current';
}

function jMenu_close() {
    if (jMenu_action)
        return;

    if (jMenu_ddmenuitem) {
        jMenu_action = true;
        jMenu_ddmenuitem.fadeOut(jMenu_effectTime, function () { jMenu_action = false; });
        jMenu_ddmenuitem = null;
        jMenu_openid = null;
    }
}

function jMenu_timer() {
    jMenu_closetimer = window.setTimeout(jMenu_close, jMenu_timeout);
}

function jMenu_canceltimer() {
    if (jMenu_closetimer) {
        window.clearTimeout(jMenu_closetimer);
        jMenu_closetimer = null;
    }
}

$(document).ready(function () {
    $('#jMenu > li').bind('mouseover', jMenu_open)
    $('#jMenu > li').bind('mouseout', jMenu_timer)
    $('#jMenu > li > ul').bind('mouseover', jMenu_canceltimer)
    $('#jMenu > li > ul > li').bind('mouseover', jMenu_canceltimer)
});

document.onclick = jMenu_close;