function showMainShadow(isShow)
{
    if (isShow)
    {
        $('#mainShadow').width($(window).width()-1);
        $('#mainShadow').height($(document).height());
        $('#mainShadow').show();
    }
    else $('#mainShadow').hide();
}

function showRegForm(tabName, afterLogonUrl)
{
    var f = syquery.page.components['regForm'];
    f.showTab(tabName);
    f.show(true);
    f.afterLogonUrl = afterLogonUrl;
}
function showSubForm()
{
    $('#substatus-subMsgForm').show();
	$('#substatus-subMsgForm').center();
}
function hideSubForm()
{
    $('#substatus-subMsgForm').hide();
}
function deleteStatus()
{
    syquery.reload();
}
document.onkeydown = NavigateThrough;

var focusInInput = false;

if (document.getElementsByTagName)
    onload = function () {
        var e, i = 0;
        while (e = document.getElementsByTagName('INPUT')[i++]) {
            if (e.type == 'text' || e.type == 'search') e.onfocus = function () {focusInInput = true};
            if (e.type == 'text' || e.type == 'search') e.onblur = function () {focusInInput = false};
        }
        i = 0;
        while (e = document.getElementsByTagName('TEXTAREA')[i++]) {
            e.onfocus = function () {focusInInput = true};
            e.onblur = function () {focusInInput = false};
        }
    };

function NavigateThrough (event) {
    if (!document.getElementById) return;

    if (window.event) event = window.event;

    if ((event.ctrlKey || event.altKey) && !focusInInput){
        var link = null;
        var href = null;
        switch (event.keyCode ? event.keyCode : event.which ? event.which : null){
            case 0x25:
                link = document.getElementById ('NextLink');
                break;
            case 0x27:
                link = document.getElementById ('PrevLink');
                break;
            case 0x26:
                link = document.getElementById ('UpLink');
                break;
            case 0x28:
                link = document.getElementById ('DownLink');
                break;
            case 0x24:
                href = '/';
                break;
        }

        if (link && link.href) document.location = link.href;
        if (href) document.location = href;
    }           
}