//------------------------------------------

// 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');

}



//==========================================

// 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');

}






//==========================================
// Portal Page jumps
//==========================================
function p_page_jump(msg, url_bit, cur_page )
{
	userPage = prompt( msg, cur_page );
	if (userPage>0) window.location = url_bit + userPage;
}








//==========================================

// 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;

}