// JavaScript Document
//Sayão FC
function trocaConteudo(url){
	document.getElementById('conteudo').src = url;
}

function display(id, on_off) { 
	var el = document.all ? document.all[id]:document.getElementById(id); 
	if(el) el.style.display = on_off ? '':'none';
}

function open_close_menu(id, classname) {
	close_outros_menus(classname);
	if(id.length>0){
		var el = document.all ? document.all[id]:document.getElementById(id);
		if (el.style.display == 'none') {
			display(id, 1);
		}
		else {
			display(id, 0);
		}
	}
}
	
function close_outros_menus(classname) {
	var allElems = document.getElementsByTagName('*');
	for(var i=0; i<allElems.length; i++){
		var thisElem = allElems[i];
		if (thisElem.className && thisElem.className == classname) {
			thisElem.style.display='none';
		}
		if(classname == 'nivel2' && (thisElem.className == 'nivel3' || thisElem.className == 'nivel4') ){
			thisElem.style.display='none';
		}
		if(classname == 'nivel3' && thisElem.className == 'nivel4'){
			thisElem.style.display='none';
		}
	}
}