var m_down = 0;
var m_active;

$(document).ready(function(){
			var check = false;
	$("#show_articles").click(function(){
		var show_articles = document.getElementById('show_articles').innerHTML;
		if(check == true) {
			$("#m_content li.hidden").slideUp('fast');
			document.getElementById('show_articles').innerHTML = '<img src="images/theme/arrow_d.gif" title="Mostrar" border="0" />';
			check = false;
		} else {
			$("#m_content li.hidden").slideDown('fast');
			document.getElementById('show_articles').innerHTML = '<img src="images/theme/arrow_u.gif" title="Ocultar" border="0" />';
			check = true;
		}
	});
			
	$(".m_00").click(function(){
					$("#s_01").slideUp('slow').css.display = "none";
					$("#s_02").slideUp('slow').css.display = "none";
					$("#s_03").slideUp('slow').css.display = "none";
					$("#s_04").slideUp('slow').css.display = "none";
			});
	
	$("#m_01").click(function(){
		if ($("#s_01").css.display != "block" || (m_down == 1 & m_active != 1)) {
							$("#s_02").slideUp('slow').css.display = "none";
							$("#s_03").slideUp('slow').css.display = "none";
							$("#s_04").slideUp('slow').css.display = "none";
						$("#s_01").slideDown('slow').css.display = "block";
			m_down = 1;
			m_active = 1;
		} else {
			$("#s_01").slideUp("slow").css.display = "none";
			m_down 	= 0;
		}
	});
	
	$("#m_02").click(function(){
		if ($("#s_02").css.display != "block" || (m_down == 1 & m_active != 2)) {
							$("#s_01").slideUp('slow').css.display = "none";
							$("#s_03").slideUp('slow').css.display = "none";
							$("#s_04").slideUp('slow').css.display = "none";
						$("#s_02").slideDown('slow').css.display = "block";
			m_down = 1;
			m_active = 2;
		} else {
			$("#s_02").slideUp("slow").css.display = "none";
			m_down 	= 0;
		}
	});
	
	$("#m_03").click(function(){
		if ($("#s_03").css.display != "block" || (m_down == 1 & m_active != 3)) {
							$("#s_01").slideUp('slow').css.display = "none";
							$("#s_02").slideUp('slow').css.display = "none";
							$("#s_04").slideUp('slow').css.display = "none";
						$("#s_03").slideDown('slow').css.display = "block";
			m_down = 1;
			m_active = 3;
		} else {
			$("#s_03").slideUp("slow").css.display = "none";
			m_down 	= 0;
		}
	});
	
	$("#m_04").click(function(){
		if ($("#s_04").css.display != "block" || (m_down == 1 & m_active != 4)) {
							$("#s_01").slideUp('slow').css.display = "none";
							$("#s_02").slideUp('slow').css.display = "none";
							$("#s_03").slideUp('slow').css.display = "none";
						$("#s_04").slideDown('slow').css.display = "block";
			m_down = 1;
			m_active = 4;
		} else {
			$("#s_04").slideUp("slow").css.display = "none";
			m_down 	= 0;
		}
	});
});