function showHideMenu() {
	var subMenu = document.getElementById('subMenuTopo');
	if (subMenu.style.display=="none" || subMenu.style.display=="") { subMenu.style.display="block"; }
	else if (subMenu.style.display=="block") { subMenu.style.display="none"; }
}

function popup(wnURL, wnName, w, h) {
	window.open(wnURL,wnName, 'width='+w+', height='+h+', scrollbars=1');
}

function viewCalendar() {
	popup('calendario-lunar.php?act=show','calendario',700,500);
	document.getElementById('frmCalendarioLunar').submit();
}

function do_search(obj) {
	var kw = document.getElementById(obj).value;
	if (kw != "") {
		location.href="busca.php?kw="+kw+"&submenu=submenu-utilidades";	
	}	
}

function search_enter(event, obj) {  
     var keynum; s
     if(window.event) { //IE  
         keynum = event.keyCode  
     } else if(e.which) { // Netscape/Firefox/Opera  
         keynum = event.which  
     }  
     if( event.keyCode==13 ) { <!-- 13 é o código do Enter -->  
          do_search(obj);
     }  
}  

var tam = 15;

function mudaFonte(tipo,elemento){
	if (tipo=="mais") {
		if(tam<24) tam+=1;
		createCookie('fonte',tam,365);
	} else {
		if(tam>10) tam-=1;
		createCookie('fonte',tam,365);
	}
	document.getElementById('layout').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;
}