// 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');
}

// Pop up chat window

function chat_pop(cw,ch)
{
 window.open( ipb_var_base_url + 'act=chat&pop=1','Chat','width='+cw+',height='+ch+',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;
}

// Set Submit use Ctrl+Enter to Topic and Reply.

function quicksubmit()
{
 if (event.keyCode==13 && event.ctrlKey)
 document.forms("REPLIER").submit.click();
}