function mostra_submenu(num) {
    var submenu = "#sub"+num;
	var mnlink = "#link"+num;
    $(submenu).show();
	$(mnlink).addClass("ativo");
}
function oculta_submenu(num) {
    var submenu = "#sub"+num;
	var mnlink = "#link"+num;
    $(submenu).hide();
	$(mnlink).removeClass("ativo");
}
function abre(url, janela, largura, altura) {
	var top = parseInt((screen.availHeight - altura) / 2);
    var left = parseInt((screen.availWidth - largura) / 2)
    var janela = window.open(url,janela,'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,left='+left+',top='+top+',width='+largura+',height='+altura);
	janela.focus();
}
function imprimir_artigo(id) {
	url = "./?pagina=imprimir_artigo&artigo_id="+id;
	abre(url, 'Imprimir', 538, 500);
}
function imprimir_noticia(id) {
	url = "./?pagina=imprimir_noticia&noticia_id="+id;
	abre(url, 'Imprimir', 538, 500);
}
function preloadImages() {
  var d=document; if(d.images){ if(!d.p) d.p=new Array();
    var i,j=d.p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.p[j]=new Image; d.p[j++].src=a[i];}}
}
function init() {
    preloadImages('./img/mn-on.png');;
}
window.onload = init;
var tempo;
function newsletter() {
    var data = $("#form_news").serialize();
	$.ajax({
		type:"get",
		url:"ajax/newsletter.php",
		data:data,
		success:function(response) {
		    clearTimeout(tempo);
			$("#newsletter #msg").html(response);
			$("#newsletter #msg").fadeIn();
			tempo = setTimeout('$("#newsletter #msg").fadeOut()', 5000);
		}
	})
}