//------------------------------------------
// 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);


//==========================================
// Spoiler
//==========================================

function openClose(id)
	{
		var obj = "";	

		// Check browser compatibility
		if(document.getElementById)
			obj = document.getElementById(id).style;
		else if(document.all)
			obj = document.all[id];
		else if(document.layers)
			obj = document.layers[id];
		else
			return 1;
			
		// Do the magic :)
		if(obj.display == "")
			obj.display = "none";
		else if(obj.display != "none")
			obj.display = "none";
		else
			obj.display = "block";
	}



//==========================================
// 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 + ';';
}


						   
//==========================================
//Pham Dac Loc Mod Menu Dep
//==========================================
// let's find out what DOM functions we can use
var vbDOMtype = '';
if (document.getElementById)
{
	vbDOMtype = "std";
}
else if (document.all)
{
	vbDOMtype = "ie4";
}
else if (document.layers)
{
	vbDOMtype = "ns4";
}

// make an array to store cached locations of objects called by fetch_object
var vBobjects = new Array();

//==========================================
// Links in box
//==========================================

// function to emulate document.getElementById
function fetch_object(idname, forcefetch)
{
	if (forcefetch || typeof(vBobjects[idname]) == "undefined")
	{
		switch (vbDOMtype)
		{
			case "std":
			{
				vBobjects[idname] = document.getElementById(idname);
			}
			break;

			case "ie4":
			{
				vBobjects[idname] = document.all[idname];
			}
			break;

			case "ns4":
			{
				vBobjects[idname] = document.layers[idname];
			}
			break;
		}
	}
	return vBobjects[idname];
}

// and prevent event bubbling
function do_an_e(eventobj)
{
	if (!eventobj || is_ie)
	{
		window.event.returnValue = false;
		window.event.cancelBubble = true;
		return window.event;
	}
	else
	{
		eventobj.stopPropagation();
		eventobj.preventDefault();
		return eventobj;
	}
}

// function to register a menu for later initialization
function vbmenu_register(controlid, nowrite, datefield)
{
	if (vbmenu_usepopups)
	{
		vbmenu_doregister(controlid, nowrite, datefield);
	}
}


function vBulletin_init()
{
	if (is_webtv)
	{
		return true;
	}
	var imgs = null;
	switch (vbDOMtype)
	{
		case "std": imgs = document.getElementsByTagName("img"); break;
		case "ie4": imgs = document.all.tags("img");             break;
		default:    imgs = false;                                break;
	}
	if (imgs)
	{
		// set 'title' tags for image elements
		for (var i = 0; i < imgs.length; i++)
		{
			if (!imgs[i].title && imgs[i].alt != "")
			{
				imgs[i].title = imgs[i].alt;
			}
		}
	}

	// init registered menus
	if (vbmenu_usepopups && vbmenu_registered.length > 0)
	{
		for (i in vbmenu_registered)
		{
			vbmenu_init(vbmenu_registered[i]);
		}

		// close all menus on mouse click
		document.onclick = vbmenu_close;
	}
	
	return true;
}

//=======================================
//Pham Dac Loc - End of Mod Menu Dep
//========================================

/*-------------------------------------------------------------------------*/
// Lang replace
/*-------------------------------------------------------------------------*/

function lang_build_string()
{
	if ( ! arguments.length || ! arguments )
	{
		return;
	}
	
	var string = arguments[0];
	
	for( var i = 1 ; i < arguments.length ; i++ )
	{
		var match  = new RegExp('<%' + i + '>', 'gi');
		string = string.replace( match, arguments[i] );
	}
	
	return string;
}

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


//==========================================
// Image resize - Tacaza
//==========================================

function ImagesResize() {
  var obj = document.getElementsByTagName("span");
  for(var i = 0;i<obj.length;i++) {
    if (obj[i].className == "bbimg") {
      var img = obj[i].getElementsByTagName("img");
      if (img[0].width > screen.width*0.6) { obj[i].innerHTML = '<div align=center><a href="' + img[0].src + '" target="_blank" title="Click để xem hình kích cỡ nguyên gốc"> <img src="' + img[0].src + '" width="' + screen.width*0.6 + '"> </a></div>'; }
    }
  }
}


/*-------------------------------------------------------------------------*/
// Get left posititon of object
/*-------------------------------------------------------------------------*/

function _get_obj_leftpos(obj)
{
	var left = obj.offsetLeft;
	
	while( (obj = obj.offsetParent) != null )
	{
		left += obj.offsetLeft;
	}
	
	return left;
}

/*-------------------------------------------------------------------------*/
// Get top position of object
/*-------------------------------------------------------------------------*/

function _get_obj_toppos(obj)
{
	var top = obj.offsetTop;
	
	while( (obj = obj.offsetParent) != null )
	{
		top += obj.offsetTop;
	}
	
	return top;
}

/*-------------------------------------------------------------------------*/
// Center a div on the screen
/*-------------------------------------------------------------------------*/

function center_div()
{
	this.divname = '';
	this.divobj  = '';
}

/*-------------------------------------------------------------------------*/
// Main run function
/*-------------------------------------------------------------------------*/

center_div.prototype.move_div = function()
{
	try
	{
		this.divobj = document.getElementById( this.divname );
	}
	catch(e)
	{
		return;
	}
	
	//----------------------------------
	// Figure width and height
	//----------------------------------
	
	var my_width  = 0;
	var my_height = 0;
	
	if ( typeof( window.innerWidth ) == 'number' )
	{
		//----------------------------------
		// Non IE
		//----------------------------------
	  
		my_width  = window.innerWidth;
		my_height = window.innerHeight;
	}
	else if ( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) )
	{
		//----------------------------------
		// IE 6+
		//----------------------------------
		
		my_width  = document.documentElement.clientWidth;
		my_height = document.documentElement.clientHeight;
	}
	else if ( document.body && ( document.body.clientWidth || document.body.clientHeight ) )
	{
		//----------------------------------
		// Old IE
		//----------------------------------
		
		my_width  = document.body.clientWidth;
		my_height = document.body.clientHeight;
	}
	
	//----------------------------------
	// Show...
	//----------------------------------
	
	this.divobj.style.position = 'absolute';
	this.divobj.style.display  = 'block';
	this.divobj.style.zIndex   = 99;
	
	//----------------------------------
	// Get div height && width
	//----------------------------------
	
	var divheight = parseInt( this.divobj.style.Height );
	var divwidth  = parseInt( this.divobj.style.Width );
	
	divheight = divheight ? divheight : 200;
	divwidth  = divwidth  ? divwidth  : 400;
	
	//----------------------------------
	// Get current scroll offset
	//----------------------------------
	
	var scrolly = this.getYscroll();
	
	//----------------------------------
	// Finalize...
	//----------------------------------
	
	var setX = ( my_width  - divwidth  ) / 2;
	var setY = ( my_height - divheight ) / 2 + scrolly;
	
	setX = ( setX < 0 ) ? 0 : setX;
	setY = ( setY < 0 ) ? 0 : setY;
	
	this.divobj.style.left = setX + "px";
	this.divobj.style.top  = setY + "px";
}

/*-------------------------------------------------------------------------*/
// Hide div
/*-------------------------------------------------------------------------*/

center_div.prototype.hide_div = function()
{
	try
	{
		if ( ! this.divobj )
		{
			return;
		}
		else
		{
			this.divobj.style.display  = 'none';
		}
	}
	catch(e)
	{
		return;
	}
}

/*-------------------------------------------------------------------------*/
// Get YScroll
/*-------------------------------------------------------------------------*/

center_div.prototype.getYscroll = function()
{
	var scrollY = 0;
	
	if ( document.documentElement && document.documentElement.scrollTop )
	{
		scrollY = document.documentElement.scrollTop;
	}
	else if ( document.body && document.body.scrollTop )
	{
		scrollY = document.body.scrollTop;
	}
	else if ( window.pageYOffset )
	{
		scrollY = window.pageYOffset;
	}
	else if ( window.scrollY )
	{
		scrollY = window.scrollY;
	}
	
	return scrollY;
}