/* ********************************************************************************* *

* Classe de LightBox														 		 *

* ********************************************************************************** */



function LightBox(div, varObj, background){

	this.init(div, varObj, background);

}



LightBox.prototype = {

	

	

	/* variáveis */

	width:			null,

	height:			null,

	top:			null,

	left:			null,

	varObj:			null,

	div:			null,

	_div:			null,

	selects: 		null,

	flashs: 		null,

	flashs_ie: 		null,

	background:		null,

	bgColor:		null,

	bgOpacidade: 	null,

	bgDiv:			null,

	borderDiv:		null,

	scrollbar:		null,

	overflowX:		null,

	overflowY:		null,

	_background: true,

	

	init:function(div, varObj, background){

		this.setSelects();

		this.setFlashs();

		this._setDiv(div);

		

		/* seta as variaveis */

		if( varObj != null )

			this.varObj = varObj;

			

		/* verifica se tem background */

		if ( background != null )

			this._background = background;

			

		this.scrollbar		= false;

		this.bgColor 		= "black";

		this.bgDiv			= "white";

		this.bgOpacidade 	= 80;

		this.overflowX		= false;

		this.overflowY		= false;

	},

	

	

	

	

	

	/* ***************************************************************************** *

	* Set's 																		 *

	* ****************************************************************************** */

	/* selects */

	setSelects:function(){

		this.selects = document.getElementsByTagName("select");

	},

	

	setFlashs:function(){

		this.flashs_ie 	= document.getElementsByTagName("object");

		this.flashs 	= document.getElementsByTagName("embed");

	},

	

	setBgColor:function(color){

		this.bgColor = color;

	},

	

	setBgOpacidade:function(opacidade){

		this.bgOpacidade = opacidade;

	},

	

	setBgDiv:function(bgDiv){

		this.bgDiv = bgDiv;	

	},

	

	setBorderDiv:function(borderDiv){

		this.borderDiv = borderDiv;

	},

	

	setOverFlow:function(x, y, width, height){

		if( x != null )

			this.overflowX = x;

		if( y != null )

			this.overflowY = y;

		if( width != null )

			this.width = width;

		if( height != null )

			this.height = height;

	},

	

	_setDiv:function(div) {

		this._div = div;

	},

	

	setDiv:function(){

		this.div = document.getElementById(this._div);

	},	

	

	/* background */

	setBackground:function(){

		this.background.style.background 	= this.bgColor;

		

		this.background.style.width	  	= "100%";

		this.background.style.height	= this.getHeight()+"px";



		

		this.background.style.position		= "absolute";

		this.background.style.top			= "0%";

		this.background.style.left			= "0%";

		this.background.style.opacity		= "."+this.bgOpacidade;

		this.background.style.filter 		= "alpha(opacity="+this.bgOpacidade+")";

		this.background.style.display		= "none";

		this.background.style.textalign		= "center";

		if( this.varObj ) {

			this.background.onclick = new Function(this.varObj+".close()");	

		}

		

			

	},

	

	

	

	/* cria o background */

	createBackground:function(){

		

		var bg = document.getElementById("__background");

		if( bg == null ){

			var newBg 	= document.createElement("div");

			var body	= document.getElementsByTagName("body")[0];

		

			newBg.setAttribute("id"		, "__background");

			newBg.setAttribute("style"	, "text-align:center;");

			

			body.appendChild(newBg);

			

			this.background = newBg;

		}

		else

			this.background = bg;

	},	

	

	/* esconde os selects -- IE bug -- */

	hideSelects:function(){

		for( var i=0; i<this.selects.length; i++ ){

			this.selects.item(i).style.visibility = "hidden";

		}

	},

	

	/* mostra os selects novamente -- IE bug -- */

	_hideSelects:function(){

		for( var i=0; i<this.selects.length; i++ ){

			this.selects.item(i).style.visibility = "";

		}

	},

	

	/* esconde os falashes -- IE bug -- */

	hideFlashs:function(){

		for( var i=0; i<this.flashs.length; i++ ){

			this.flashs.item(i).style.visibility = "hidden";

		}

		for( var i=0; i<this.flashs_ie.length; i++ ){

			this.flashs_ie.item(i).style.visibility = "hidden";

		}

	},

	

	/* mostra os selects novamente -- IE bug -- */

	_hideFlashs:function(){

		for( var i=0; i<this.flashs.length; i++ ){

			this.flashs.item(i).style.visibility = "";

		}

		for( var i=0; i<this.flashs_ie.length; i++ ){

			this.flashs_ie.item(i).style.visibility = "";

		}

	},	

	

	/* mostra o lightbox */

	show:function(hide){

		

		if( (hide==undefined) || (hide!=false) ){

			this.hideSelects();

			this.hideFlashs();

		}

		

		if (this._background) {

			this.createBackground();

			this.setBackground();

			this.showBackground();

		}

		

		this.setDiv();

		

		this.showDiv();

		this.resize();

		this.control();

	},	

	

	/* fecha o lightbox */

	/* flag => TRUE, mostra novamente a barra de rolagem, FALSE, nao mostra */

	/* hide => TRUE, mostra o flash e imput novamente, FALSE nao mostra */

	

	close:function(flag, hide){

		if ( (flag==undefined) || (flag==null))

			flag = true; 

			

		this.hideDiv();

		if (this._background)

			this.hideBackground();

		

		if( (hide==undefined) || (hide!=false) ){

			this._hideSelects();

			this._hideFlashs();

		}

		

		if (flag)

			this._control();

	},

	

	

	/* mostra o background */

	showBackground:function(){

		this.background.style.display = "block";

	},

	

	/* esconde o background */

	hideBackground:function(){

		this.background.style.display = "none";

	},

	

	/* mostra a div */

	showDiv:function(){

		

		this.div.style.position		= "absolute";

		this.div.style.overflowX	= "auto";

		this.div.style.overflowY	= "auto";

		this.div.style.zIndex 		= "1002";

		this.div.style.display 		= "block";

		

		if( this.bgDiv != null )

			this.div.style.background = this.bgDiv;

		if( this.borderDiv != null )

			this.div.style.border = this.borderDiv;

			

		if( this.width )

			this.div.style.width = this.width;

		if( this.height )

			this.div.style.height = this.height;

		

		if (this.varObj != null) {

			var body = document.getElementsByTagName("body")[0];

			body.setAttribute("onresize", this.varObj+".resize()");

		}

		

	},	

	

	resize:function(){

		this.div.style.left = "50%";

		this.div.style.top	= "50%";

		

		var height = parseInt("-"+(this.div.offsetHeight/2));

		height    += document.body.scrollTop;

		height    += document.documentElement.scrollTop;

		

		

		this.div.style.marginLeft = "-"+(parseInt(this.div.offsetWidth/2))+"px";

		this.div.style.marginTop 	= height+"px";

			

		this.background.style.width	  	= "100%";

		this.background.style.height	= this.getHeight()+"px";	

	},

	

	

	/* esconde a div */

	hideDiv:function(){

		this.div.style.display = "none";

	},

	

	/* controle do lightbox após 'aberto' show */

	control:function(){		

		if( this.overflowX )

			document.body.style.overflowX = "hidden";

		if( this.overflowY )

			document.body.style.overflowY = "hidden";

	

	},

	

	_control:function(){		

		if( (this.overflowX) || (this.overflowX == null) )

			document.body.style.overflowX = "auto";

		if( (this.overflowY) || (this.overflowY == null) )

			document.body.style.overflowY = "auto";		

	},

	

	

	getWidth:function() {

		

		var x = 0;

		

		if( window.innerWidth )

			x = window.innerWidth;

		else {

			if( document.documentElement )

				x = document.documentElement.clientWidth;

			else {

				if( document.body )

					x = document.body.clientWidth;

				else

					x = window.screen.width;

			}

		}

		

		return x;

		

	},



	

	

	getHeight:function(){

		

		var y = 0;

		

		if( window.innerHeight && (y < window.innerHeight) )

			y = window.innerHeight;

		

		if( document.documentElement && (y < document.documentElement.clientHeight) )

			y = document.documentElement.clientHeight;

		

		if( document.body && (y < document.body.clientHeight) )

			y = document.body.clientHeight;

		

		if( window.screen.height && (y < window.screen.height) && ( document.documentElement.clientHeight < document.body.clientHeight ) )

			y = window.screen.height;

		

		return y;

	}  

}