function changeClass(id, class_name)
{
	document.getElementById(id).className = class_name;
}

function EffectMenu(acao, id)
{
	if (acao == 1)
	{
		changeClass(id, "menu_celula_sel");
	}
	else if (acao == 2)
	{
		changeClass(id, "menu_celula");
	}
}

function abrir(pagina)
{
	window.open(pagina, "_parent");
}

function limitTextSize(id_campo, max_length)
{
	valor = document.getElementById(id_campo).value;
	if (valor.length > max_length)
	{
		nValue = "";
		for (cont = 0; cont<max_length; cont++)
		{
			nValue += valor.charAt(cont);
		}
		document.getElementById(id_campo).value = nValue;
	}
	
}

function showpopup(id){
	if(document.getElementById(id).style.visibility == "visible")
	{	
		document.getElementById(id).style.display = "none";
		document.getElementById(id).style.visibility = "hidden";
	}
	else{
		document.getElementById(id).style.display = "block";
		document.getElementById(id).style.visibility = "visible";	
	}
}

function abreGaleria(pagina){
	window.open(pagina, "_blank", "width=517, height=400,scrollbars=yes,left=300");
}