function abre(pagina,janela,w,h,scrolling) {
 if (!scrolling) { scrolling='auto' }
 resultado = window.open(pagina,janela,'width='+w+',height='+h+',scrollbars=yes,toolbar=no,location=no,status=no,menubar=no,resizable=no')
}

function showdiv(id) {
var obj = document.getElementById(id);
	if(obj.style.display == 'none'){
	obj.style.display = 'block';
	}else{
	obj.style.display = 'none';
	}
}