function ver(apartat) {
	document.getElementById('presentacion').style.display='none';
	document.getElementById('seminario').style.display='none';
	document.getElementById('inscripcions').style.display='none';
	document.getElementById('seminario_advanced').style.display='none';
	document.getElementById('seminario_base').style.display='none';
	document.getElementById('programa').style.display='none';
	document.getElementById('beneficios').style.display='none';
	document.getElementById('fotosSem').style.display='none';

	document.getElementById('fotosSem_01').style.display='none';
	document.getElementById('fotosSem_02').style.display='none';
	document.getElementById('fotosSem_03').style.display='none';
	document.getElementById('fotosSem_04').style.display='none';

	document.getElementById(apartat).style.display='block';
	
	if ((document.getElementById('interiorfondo')!=undefined) && (apartat=='presentacion') || (apartat=='seminario_base') || (apartat=='seminario_advanced')) {
		document.getElementById('interiorfondo').style.height='850px';
		document.getElementById('peu').style.top='1075px';
		document.getElementById('sidebar1').style.height='1200px';
		document.getElementById('sidebar2').style.height='1200px';
	} else {
		document.getElementById('interiorfondo').style.height='570px';
		document.getElementById('peu').style.top='780px';
	}
	// alert(document.getElementById('interiorfondo').style.height);
}