function toggle(div_id) {
	var el = document.getElementById(div_id);
	if ( el.style.display == 'none' ) {	el.style.display = 'block';}
	else {el.style.display = 'none';}
}
function blanket_size(popUpDivVar) {
	if (typeof window.innerWidth != 'undefined') {
		viewportheight = window.innerHeight;
	} else {
		viewportheight = document.documentElement.clientHeight;
	}
	if ((viewportheight > document.body.parentNode.scrollHeight) && (viewportheight > document.body.parentNode.clientHeight)) {
		blanket_height = viewportheight;
	} else {
		if (document.body.parentNode.clientHeight > document.body.parentNode.scrollHeight) {
			blanket_height = document.body.parentNode.clientHeight;
		} else {
			blanket_height = document.body.parentNode.scrollHeight;
		}
	}
	var blanket = document.getElementById('blanket');
	blanket.style.height = blanket_height + 'px';
	var popUpDiv = document.getElementById(popUpDivVar);
	popUpDiv_height=blanket_height/2-350; //
	popUpDiv.style.top = popUpDiv_height + 'px';
}
function window_pos(popUpDivVar) {
	
	if (typeof window.innerWidth != 'undefined') {
		viewportwidth = window.innerHeight;
	} else {
		viewportwidth = document.documentElement.clientHeight;
	}
	if ((viewportwidth > document.body.parentNode.scrollWidth) && (viewportwidth > document.body.parentNode.clientWidth)) {
		window_width = viewportwidth;
	} else {
		if (document.body.parentNode.clientWidth > document.body.parentNode.scrollWidth) {
			window_width = document.body.parentNode.clientWidth;
		} else {
			window_width = document.body.parentNode.scrollWidth;
		}
	}
	var popUpDiv = document.getElementById(popUpDivVar);
	window_width = window_width/2-220; //150 is half popup's width
	popUpDiv.style.left = window_width + 'px';
	
}
function popup(windowname, idDiv, idNews) {
//	alert(idDiv)
//	alert(windowname)
	blanket_size(windowname);
	window_pos(windowname);
	toggle('blanket');
	toggle(windowname);
	if (idNews>0) {
		carregaDados('carrega_noticia.asp','?id_noticia=' + idNews + '&rnd'+ Math.random(),idDiv);
	} 
	if(idDiv == "gastronomia01") {
		document.getElementById(idDiv).style.display='block';
	}
	
	
	if(idDiv == "gastronomia02") {
		document.getElementById(idDiv).style.display='block';
	}
	if(idDiv == "gastronomia03") {
		document.getElementById(idDiv).style.display='block';
	}
	if(idDiv == "gastronomia04") {
		document.getElementById(idDiv).style.display='block';
	}
}
function fechar(){
		document.getElementById('video').style.display='none';
		document.getElementById('noticia').style.display='none';
		document.getElementById('gastronomia01').style.display='none';
		document.getElementById('gastronomia02').style.display='none';
		document.getElementById('gastronomia03').style.display='none';
		document.getElementById('gastronomia04').style.display='none';
		document.getElementById('popUpDiv').style.display='none';
		document.getElementById('blanket').style.display='none';	
}

function carregaDados(arqRetorno,parametros,idDiv) {
	try {
		xmlhttp = new XMLHttpRequest();
	} catch(ee) {
		try {
			xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
		} catch(e) {
			try {
				xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
			} catch(E) {
				xmlhttp = false;
			}
		}
	}

	xmlhttp.open("GET", arqRetorno + parametros, true);
	
	xmlhttp.onreadystatechange = function() {
		if(xmlhttp.readyState == 4) {
			retorno = xmlhttp.responseText;
			retorno = retorno.replace(/\+/g," ");
			retorno = unescape(retorno);
			//alert(retorno);

			document.getElementById(idDiv).innerHTML = retorno;
			document.getElementById(idDiv).style.display='block';
		}
	}
	
	xmlhttp.send(null);
}