function chgImg (imgName) {
	var imgObj = 'document.' + imgName;
	eval(imgObj).src = imgName + "_on.gif";
}

function restImg (imgName) {
	var imgObj = 'document.' + imgName;
	eval(imgObj).src = imgName + "_off.gif";
}

function sL(object) {
	obj = document.getElementById(object);
	obj.style.display = "block";
}

function hL(object) {
	obj = document.getElementById(object);
	obj.style.display = "none";
}

function hLall() {
	for (i = 1; i <= numTabelas; i++) {
		obj = "tab_" + i;
		obj = document.getElementById(obj);
		obj.style.display = "none";
	}
}

function hLall2() {
	for (i = 1; i <= numEstados; i++) {
		obj = "sel_" + i;
		obj = document.getElementById(obj);
		obj.style.display = "none";
	}
}