//------------------------------------------
// Invision Power Board v2.0
// Global JS File
// (c) 2003 Invision Power Services, Inc.
//
// http://www.invisionboard.com
//------------------------------------------

//==========================================
// Set up
//==========================================

// Sniffer based on http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html

var uagent    = navigator.userAgent.toLowerCase();
var is_safari = ( (uagent.indexOf('safari') != -1) || (navigator.vendor == "Apple Computer, Inc.") );
var is_ie     = ( (uagent.indexOf('msie') != -1) && (!is_opera) && (!is_safari) && (!is_webtv) );
var is_ie4    = ( (is_ie) && (uagent.indexOf("msie 4.") != -1) );
var is_moz    = (navigator.product == 'Gecko');
var is_ns     = ( (uagent.indexOf('compatible') == -1) && (uagent.indexOf('mozilla') != -1) && (!is_opera) && (!is_webtv) && (!is_safari) );
var is_ns4    = ( (is_ns) && (parseInt(navigator.appVersion) == 4) );
var is_opera  = (uagent.indexOf('opera') != -1);
var is_kon    = (uagent.indexOf('konqueror') != -1);
var is_webtv  = (uagent.indexOf('webtv') != -1);

var is_win    =  ( (uagent.indexOf("win") != -1) || (uagent.indexOf("16bit") !=- 1) );
var is_mac    = ( (uagent.indexOf("mac") != -1) || (navigator.vendor == "Apple Computer, Inc.") );
var ua_vers   = parseInt(navigator.appVersion);

//==========================================
// Get cookie
//==========================================

function my_getcookie( name )
{
    cname = ipb_var_cookieid + name + '=';
    cpos  = document.cookie.indexOf( cname );
    
    if ( cpos != -1 )
    {
        cstart = cpos + cname.length;
        cend   = document.cookie.indexOf(";", cstart);
        
        if (cend == -1)
        {
            cend = document.cookie.length;
        }
        
        return unescape( document.cookie.substring(cstart, cend) );
    }
    
    return null;
}

//==========================================
// Set cookie
//==========================================

function my_setcookie( name, value, sticky )
{
    expire = "";
    domain = "";
    path   = "/";
    
    if ( sticky )
    {
        expire = "; expires=Wed, 1 Jan 2020 00:00:00 GMT";
    }
    
    if ( ipb_var_cookie_domain != "" )
    {
        domain = '; domain=' + ipb_var_cookie_domain;
    }
    
    if ( ipb_var_cookie_path != "" )
    {
        path = ipb_var_cookie_path;
    }
    
    document.cookie = ipb_var_cookieid + name + "=" + value + "; path=" + path + expire + domain + ';';
}

//==========================================
// Pop up MyAssistant window
//==========================================

function buddy_pop()
{
    window.open( ipb_var_base_url + 'act=buddy','BrowserBuddy','width=250,height=500,resizable=yes,scrollbars=yes');
}

//==========================================
// Multi Page jumps
//==========================================

function multi_page_jump( url_bit, total_posts, per_page )
{
    pages = 1;
    cur_st = ipb_var_st;
    cur_page  = 1;
    
    if ( total_posts % per_page == 0 )
    {
        pages = total_posts / per_page;
    }
    else
    {
        pages = Math.ceil( total_posts / per_page );
    }
    
    msg = ipb_lang_tpl_q1 + " " + pages;
    
    if ( cur_st > 0 )
    {
        cur_page = cur_st / per_page; cur_page = cur_page -1;
    }
    
    show_page = 1;
    
    if ( cur_page < pages )
    {
        show_page = cur_page + 1;
    }
    
    if ( cur_page >= pages )
    {
        show_page = cur_page - 1;
    }
    else
    {
        show_page = cur_page + 1;
    }
    
    userPage = prompt( msg, show_page );
    
    if ( userPage > 0  )
    {
        if ( userPage < 1 )     {    userPage = 1;  }
        if ( userPage > pages ) { userPage = pages; }
        if ( userPage == 1 )    {     start = 0;    }
        else { start = (userPage - 1) * per_page; }
    
        window.location = url_bit + "&st=" + start;
    }
}

//==========================================
// Hide / Unhide menu elements
//==========================================

function ShowHide(id1, id2)
{
    if (id1 != '') toggleview(id1);
    if (id2 != '') toggleview(id2);
}
    
//==========================================
// Get element by id
//==========================================

function my_getbyid(id)
{
    itm = null;
    
    if (document.getElementById)
    {
        itm = document.getElementById(id);
    }
    else if (document.all)
    {
        itm = document.all[id];
    }
    else if (document.layers)
    {
        itm = document.layers[id];
    }
    
    return itm;
}

//==========================================
// Show/hide toggle
//==========================================

function toggleview(id)
{
    if ( ! id ) return;
    
    if ( itm = my_getbyid(id) )
    {
        if (itm.style.display == "none")
        {
            my_show_div(itm);
        }
        else
        {
            my_hide_div(itm);
        }
    }
}

//==========================================
// Set DIV ID to hide
//==========================================

function my_hide_div(itm)
{
    if ( ! itm ) return;
    
    itm.style.display = "none";
}

//==========================================
// Set DIV ID to show
//==========================================

function my_show_div(itm)
{
    if ( ! itm ) return;
    
    itm.style.display = "";
}

//==========================================
// Change cell colour
//==========================================

function change_cell_color( id, cl )
{
    itm = my_getbyid(id);
    
    if ( itm )
    {
        itm.className = cl;
    }
}

//==========================================
// Toggle category
//==========================================

function togglecategory( fid, add )
{
    saved = new Array();
    clean = new Array();

    //-----------------------------------
    // Get any saved info
    //-----------------------------------
    
    if ( tmp = my_getcookie('collapseprefs') )
    {
        saved = tmp.split(",");
    }
    
    //-----------------------------------
    // Remove bit if exists
    //-----------------------------------
    
    for( i = 0 ; i < saved.length; i++ )
    {
        if ( saved[i] != fid && saved[i] != "" )
        {
            clean[clean.length] = saved[i];
        }
    }
    
    //-----------------------------------
    // Add?
    //-----------------------------------
    
    if ( add )
    {
        clean[ clean.length ] = fid;
        my_show_div( my_getbyid( 'fc_'+fid  ) );
        my_hide_div( my_getbyid( 'fo_'+fid  ) );
    }
    else
    {
        my_show_div( my_getbyid( 'fo_'+fid  ) );
        my_hide_div( my_getbyid( 'fc_'+fid  ) );
    }
    
    my_setcookie( 'collapseprefs', clean.join(','), 1 );
}

//==========================================
// locationjump
//==========================================

function locationjump(url)
{
    window.location = ipb_var_base_url + url;
}

//==========================================
// CHOOSE SKIN
//==========================================

function chooseskin(obj)
{
    choosebox = obj.options[obj.selectedIndex].value;
    extravars = '';
    
    if ( choosebox != -1 && ! isNaN( choosebox ) )
    {
        if ( document.skinselectorbox.skinurlbits.value )
        {
            extravars = '&' + document.skinselectorbox.skinurlbits.value;
        }
        
        locationjump( 'setskin=1&skinid=' + choosebox + extravars );
    }
}

//==========================================
// CHOOSE LANG
//==========================================

function chooselang(obj)
{
    choosebox = obj.options[obj.selectedIndex].value;
    extravars = '';
    
    if ( document.langselectorbox.langurlbits.value )
    {
        extravars = '&' + document.langselectorbox.langurlbits.value;
    }
    
    locationjump( 'setlanguage=1&langid=' + choosebox + extravars );
}

//==========================================
// pop up window
//==========================================

function PopUp(url, name, width,height,center,resize,scroll,posleft,postop)
{
    showx = "";
    showy = "";
    
    if (posleft != 0) { X = posleft }
    if (postop  != 0) { Y = postop  }
    
    if (!scroll) { scroll = 1 }
    if (!resize) { resize = 1 }
    
    if ((parseInt (navigator.appVersion) >= 4 ) && (center))
    {
        X = (screen.width  - width ) / 2;
        Y = (screen.height - height) / 2;
    }
    
    if ( X > 0 )
    {
        showx = ',left='+X;
    }
    
    if ( Y > 0 )
    {
        showy = ',top='+Y;
    }
    
    if (scroll != 0) { scroll = 1 }
    
    var Win = window.open( url, name, 'width='+width+',height='+height+ showx + showy + ',resizable='+resize+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no');
}

//==========================================
// Array: Get stack size
//==========================================

function stacksize(thearray)
{
    for (i = 0 ; i < thearray.length; i++ )
    {
        if ( (thearray[i] == "") || (thearray[i] == null) || (thearray == 'undefined') )
        {
            return i;
        }
    }
    
    return thearray.length;
}

//==========================================
// Array: Push stack
//==========================================

function pushstack(thearray, newval)
{
    arraysize = stacksize(thearray);
    thearray[arraysize] = newval;
}

//==========================================
// Array: Pop stack
//==========================================

function popstack(thearray)
{
    arraysize = stacksize(thearray);
    theval = thearray[arraysize - 1];
    delete thearray[arraysize - 1];
    return theval;
}

var sign_down_but = 0;
var sign_dx = 0;
var sign_dy = 0;
function show_sign_dims(el, uid, uname)
{
    var sign = document.getElementById('sign_dims_div');
    if (el) {
        id_name_repl = id_name.replace('%id%', uid).replace('%nick%', uname);
        document.getElementById('reset_sign_link').innerHTML = reset_sign + id_name_repl;
        document.forms['sign_clear_form'].member_id.value = uid;
        
        var c = getAbsCoords(el);
        sign.style.left = c.left - 525;
        sign.style.top = c.top - 120;
        sign.style.display = 'block';
        document.onmousemove = sign.onmousemove = sign_move;
        sign.onmousedown = sign_mdown;
        document.onmouseup = sign.onmouseup = sign_mup;
        document.onselectstart = function() { return false; }
    } else {
        sign.style.display = 'none';
        document.onmousemove = document.onmouseup = sign.onmousemove = null;
        document.onselectstart = null;
    }
}

function sign_mdown(ev)
{
    ev || (ev = window.event);
    sign_down_but = 1;
    sign_dx = ev.clientX + document.body.scrollLeft;
    sign_dy = ev.clientY + document.body.scrollTop;
}

function sign_mup(ev)
{
    sign_down_but = 0;
    sign_dx = 0;
    sign_dy = 0;
}

function sign_move(ev)
{
    if (sign_down_but) {
        ev || (ev = window.event);

        var sign_ux = ev.clientX + document.body.scrollLeft;
        var sign_uy = ev.clientY + document.body.scrollTop;

        var sign = document.getElementById('sign_dims_div').style;
        sign.left = parseInt(sign.left) + sign_ux - sign_dx;
        sign.top  = parseInt(sign.top)  + sign_uy - sign_dy;
        sign_dx = sign_ux;
        sign_dy = sign_uy;
    }
}

function clear_sign()
{
    if (confirm(confirm_reset_sign + id_name_repl)) {
        document.forms['sign_clear_form'].submit();
    }
}

function post_set_status(topic, pid, user_id, status)
{
    if (confirm(confirm_post_set_status + status + '?')) {
        var form = document.forms['post_set_status_form'];
        form.post_id.value = pid;
        form.topic_id.value = topic;
        form.mid.value = user_id;
        form.status.value = status;
        form.submit();
    }
}

function add_img_titles()
{
    var c = document.images.length;
    for (i = 0; i < c; i++) {
        if (document.images[i].alt && !document.images[i].title) {
            document.images[i].title = document.images[i].alt;
        }
    }
}
window.onload = add_img_titles;