//------------------------------------------
// 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);
/*	Ajax module by Jinghao Yan of http://originxt.com, made for dynamically loading topics, posts, parsed or unparsed etc on the spot.
	For information or support email me at orijing at gmail dot com.
*/

var field;
var isTextArea;

function getData(str,fld,textfield)
{
	field = fld;

	isTextArea = textfield ? true : false;
	
	// make sure you don't get a cached version by giving a random number

	var url="index.php?sid=" + Math.random() + "&" + str;
	xmlHttp=GetXmlHttpObject(stateChanged);
	xmlHttp.open("GET", url , true);
	xmlHttp.send(null);

	return false;
}

function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{
		if(isTextArea)
		{
			eval("document."+field+".value=xmlHttp.responseText");
			eval("document."+field+".focus()");
		}
		else 
		{
			document.getElementById(field).innerHTML=xmlHttp.responseText;
		}
		
	} 
}

function GetXmlHttpObject(handler)
{ 
	var objXmlHttp=null
	
	if (navigator.userAgent.indexOf("MSIE")>=0)
	{ 
		var strName="Msxml2.XMLHTTP";
		if (navigator.appVersion.indexOf("MSIE 5.5")>=0) strName="Microsoft.XMLHTTP";
		
		try
		{ 
			objXmlHttp=new ActiveXObject(strName);
			objXmlHttp.onreadystatechange=handler ;
			return objXmlHttp;
		} 
		catch(err) { return xmlerror(); }
	} 
	else
	{
		try
		{
    			objXmlHttp=new XMLHttpRequest();
    			objXmlHttp.onload =handler;
    			objXmlHttp.onerror=xmlerror;
    			return objXmlHttp;
		}
		catch(err) { return xmlerror(); }
	}
}

function xmlerror()
{
	alert("Error. Scripting for ActiveX might be disabled");
	return;
}
/*	Ajax module by Jinghao Yan of http://originxt.com, made for dynamically loading topics, posts, parsed or unparsed etc on the spot.
	For information or support email me at orijing at gmail dot com or go to the indicated URL (above)
*/

var field;
var isTextArea;

function getData(str,fld,textfield)
{
	field = fld;

	isTextArea = textfield ? true : false;
	
	// make sure you don't get a cached version by giving a random number

	var url="index.php?sid=" + Math.random() + "&" + str;
	xmlHttp=GetXmlHttpObject(stateChanged);
	xmlHttp.open("GET", url , true);
	xmlHttp.send(null);

	return false;
}

function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{
		if(isTextArea)
		{
			eval("document."+field+".value=xmlHttp.responseText");
			eval("document."+field+".focus()");
		}
		else 
		{
			document.getElementById(field).innerHTML=xmlHttp.responseText;
		}
		
	} 
}

function GetXmlHttpObject(handler)
{ 
	var objXmlHttp=null
	
	if (navigator.userAgent.indexOf("MSIE")>=0)
	{ 
		var strName="Msxml2.XMLHTTP";
		if (navigator.appVersion.indexOf("MSIE 5.5")>=0) strName="Microsoft.XMLHTTP";
		
		try
		{ 
			objXmlHttp=new ActiveXObject(strName);
			objXmlHttp.onreadystatechange=handler ;
			return objXmlHttp;
		} 
		catch(err) { return xmlerror(); }
	} 
	else
	{
		try
		{
    			objXmlHttp=new XMLHttpRequest();
    			objXmlHttp.onload =handler;
    			objXmlHttp.onerror=xmlerror;
    			return objXmlHttp;
		}
		catch(err) { return xmlerror(); }
	}
}

function xmlerror()
{
	alert("Error. Scripting for ActiveX might be disabled");
	return;
}

//==========================================
// 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;
}