function menu(obj)
{
	if(/on.jpg$/.test(obj.src))
		obj.src = obj.src.replace(/on.jpg/, 'off.jpg');
	else
		obj.src = obj.src.replace(/off.jpg/, 'on.jpg');
}
function fundoInput(obj,img)
{
	obj.onblur = obj.onfocus;
	obj.onkeyup = obj.onfocus;
	obj.onkeypress = obj.onfocus;
	obj.onkeydown = obj.onfocus;
	if(obj.value.length)
		obj.style.backgroundImage = 'url()';
	else
		obj.style.backgroundImage = 'url('+img+')';
}
function  evento(cd)
{
	window.open('ver_evento.php?cd='+cd, null, 'toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=600,height=700,left=300');
}