var fechaMin = new Date("November 15, 2007");
var fechaMax = new Date("March 15,2008");	

var izda = screen.width * 4.2 / 100;
var arriba = screen.width * 3.5 / 100;
var derecha = screen.width * 41.4 /100;
var abajo = screen.width * 12.1 / 100;

	


function dimensionar(){
	(screen.width > 800)?document.getElementById('logoEntrada').style.height = screen.availHeight * 0.60 +'px':document.getElementById('logoEntrada').style.height = screen.availHeight * 0.53 +'px';
	var fecha = new Date();
		if (fecha > fechaMin && fecha < fechaMax)
	{
		document.getElementById("banner").style.visibility='visible';
	}	
	
	return;

	document.getElementById('imgLogo').width = screen.width * 0.47;
	document.getElementById('imgLogo').height = screen.height * 0.75;
	document.getElementById('imgLogo').coords = izda + ',' + arriba + ',' + derecha +','+abajo;
	document.getElementById('tbLogo').style.visibility = 'visible';

}	

function activarAviso(){
	document.getElementById('aviso').style.visibility='visible';
	document.getElementById('banner').style.visibility='hidden'
}

function cerrarAviso(){
document.getElementById('aviso').style.visibility='hidden';
dimensionar();
}