var tam = 13;

function mudaFonte(tipo,elemento){
	if (tipo=="mais") {
		if(tam<16) tam+=1;
		createCookie('fonte',tam,365);
	} else {
		if(tam>10) tam-=1;
		createCookie('fonte',tam,365);
	}
	document.getElementById('mudaFonte').style.fontSize = tam+'px';
	// document.getElementById('mudaFoto').style.fontSize = tam+'px';
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	} else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++)
	{
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

var undefined;
function isUndefined(property) {
	return (typeof property == 'undefined');
}


// float do box de publicidadec 
function resizePublicidade(){
	var d=document;
	if (!d.getElementById('publicidadeMateria')) d.getElementById('boxesMateria').style.width='99.5%';
	if (d.getElementById('txtBusca')!= null) {
	if (!d.getElementById('publicidadeMateria')) d.getElementById('txtBusca').style.width='460px';
	}
}

// Popup 
function popup(lnk,pop,w,h,s) { 
	window.open(lnk,pop,'width='+w+',height='+h+',top=100,left=100,resizable=0,status=0,menubar=0,scrollbars='+s); 
}


// Largura do box descri??o do Zoom

function larguraBoxZoom(){
	if (document.getElementById('imgZoom') != null) var largura = document.getElementById('imgZoom').width + 'px';
	if (document.getElementById('fotoZoom')) document.getElementById('descricao').style.width = largura + 'px';
}

function addLoadEvent(fun) {
	if (window.addEventListener) {
		window.addEventListener("load", function () { eval(fun)(); } , false);
	} else if (document.addEventListener) {
		document.addEventListener("load", function () { eval(fun)(); } , false);
	} else if (window.attachEvent) {
		window.attachEvent("onload", function () { eval(fun)(); } );
	} else if (typeof window.onload == "function") {
		var fnOld = window.onload;
		window.onload = function(){
			fnOld();
			eval(fun)();
		}
	} else {
		window.onload = function () { eval(fun)(); }
	}
}

addLoadEvent(larguraBoxZoom);

/* ----- zoom ---- */

	function getPageSize() {
		var xScroll, yScroll;
		if (window.innerHeight && window.scrollMaxY){
			xScroll = document.body.scrollWidth;
			yScroll = window.innerHeight + window.scrollMaxY;
		} else if (document.body.scrollHeight > document.body.offsetHeight){
			xScroll = document.body.scrollWidth;
			yScroll = document.body.scrollHeight;
		} else {
			xScroll = document.body.offsetWidth;
			yScroll = document.body.offsetHeight;
		}
		var windowWidth, windowHeight;
		if (self.innerHeight) {
			windowWidth = self.innerWidth;
			windowHeight = self.innerHeight;
		} else if (document.documentElement && document.documentElement.clientHeight) {
			windowWidth = document.documentElement.clientWidth;
			windowHeight = document.documentElement.clientHeight;
		} else if (document.body) {
			windowWidth = document.body.clientWidth;
			windowHeight = document.body.clientHeight;
		}	
		if(yScroll < windowHeight) pageHeight = windowHeight;
		else pageHeight = yScroll;
		if(xScroll < windowWidth) pageWidth = windowWidth;
		else pageWidth = xScroll;
		arrayPageSize = {pageWidth:pageWidth,pageHeight:pageHeight,windowWidth:windowWidth,windowHeight:windowHeight}
		return arrayPageSize;
	}
	
	function getPageScroll(){
		var yScroll;
		if (self.pageYOffset) yScroll = self.pageYOffset;
		else if (document.documentElement && document.documentElement.scrollTop) yScroll = document.documentElement.scrollTop;
		else if (document.body) yScroll = document.body.scrollTop;
		arrayPageScroll = {yScroll:yScroll};
		return arrayPageScroll;
	}

 	function initZoom(div) {
		var container = document.getElementById(div);	
		var lnks = container.getElementsByTagName('a');
		for(var i=0,len=lnks.length;i<len;i++) {
			if(lnks[i].className.indexOf('linkZoom') > -1) {
				lnks[i].onclick = function() {
					openZoom(this);
					return false;
				}
			}
		}
	}
	
	function closeZoom(obj) {
		document.body.removeChild(document.getElementById('zoom'));
		document.body.removeChild(document.getElementById('sombra'));
		obj.parentNode.parentNode.parentNode.removeChild(obj.parentNode.parentNode);
	}
	
	function resizeZoom(obj) {
		var largura = obj.width;
		var altura = obj.height;
		var box = obj.parentNode.parentNode;
		var pageSize = getPageSize();
		var pageScroll = getPageScroll();
		var boxTop = pageScroll.yScroll + ((pageSize.windowHeight - altura - 26) / 2);
		var boxLeft = ((pageSize.pageWidth - largura - 40) / 2);
//		box.style.top = (boxTop < 0) ? "0px" : boxTop + "px";
		box.style.top = "320px";
		box.style.left = (boxLeft < 0) ? "0px" : boxLeft + "px";
		box.style.visibility = 'visible';
		try {
			var divZoom = document.getElementById('zoom_'+obj.className);
			var divDescricao = document.getElementById('desc_'+obj.className);
			if(divZoom) divZoom.style.width = largura + 'px';
			if(divDescricao) divDescricao.style.width = largura + 'px';
		} catch(erro) {}
	}
	
	function openZoom(obj,titulo2) {
		var pageSize = getPageSize();
		var fonte = '';
		var descricao = '';
		var classe = 'abc';
		
		var divs = obj.parentNode.parentNode.parentNode.getElementsByTagName('div');
		for(var i=0,len=divs.length;i<len;i++) {
			if(divs[i].className.indexOf('titulo') > -1) titulo = divs[i].innerHTML;
		}
		var divContainer = document.createElement('div');
		divContainer.id = 'zoom';
		divContainer.className = 'zoom';
		divContainer.style.height = (pageSize.pageHeight + 'px');
		var divSombra = document.createElement('div');
		divSombra.id = 'sombra';
		divSombra.className = 'sombra';
		divSombra.style.height = (pageSize.pageHeight + 'px');
		document.body.appendChild(divSombra);
		var divZoom = document.createElement('div');
		divZoom.id = 'zoom_' +  classe;
		divZoom.className = 'fotoZoom';

		var imgZoom = document.createElement('img');
		imgZoom.id = 'img_' + classe;
		imgZoom.className = classe;
		imgZoom.src = obj.href;
//		imgZoom.alt = 'Foto';

		var divDescricao = document.createElement('div');
		divDescricao.className = 'descricao';
		
		var p2 = document.createElement('div');
		p2.id = 'div_' +  classe;
		p2.className = 'p2';
		p2.innerHTML = titulo;
		
		var divFechar = document.createElement('div');
		divFechar.className = 'fechar';
		var aFechar = document.createElement('a');
		aFechar.title = 'fechar';
		aFechar.innerHTML = 'fechar';
		aFechar.href = '#';
		aFechar.onclick = function() {
			closeZoom(this);
			return false;
		}
		divDescricao.appendChild(imgZoom);
		divFechar.appendChild(aFechar);
		divDescricao.appendChild(p2);
		divZoom.appendChild(divFechar);
//		divZoom.appendChild(spanFonte);
		divZoom.appendChild(divDescricao);
		divContainer.appendChild(divZoom);		
		document.body.appendChild(divContainer);
		
		if(imgZoom.width && imgZoom.width > 56) {
		 resizeZoom(imgZoom);
		}
		imgZoom.onload = function() {
		  resizeZoom(this);
		  return false;
		}	
	}

						
/* --------- */