function rotarslide(idelemento,fotosarray,epigrafes,accion,total)
{
	elemento = "rotar_" + idelemento;
	elementoepigrafe = "ep_" + idelemento;
	elementopag = "f_" + idelemento;

	obj = document.getElementById(elemento);
	obj2 = document.getElementById(elementoepigrafe);
	obj3 = document.getElementById(elementopag);
	
	if(accion == "R")
		eval("pos_" + idelemento + "--");
	else
		eval("pos_" + idelemento + "++");

	pos = eval("pos_" + idelemento);

	if(pos > total -1)
		eval("pos_" + idelemento + " = 0;");

	if(pos < 0)
		eval("pos_" + idelemento + " = " + (total -1) + ";");
	
	pos = eval("pos_" + idelemento);

	obj.src =  fotosarray[pos] ;
	obj2.innerHTML = epigrafes[pos] ;
	obj3.innerHTML = (pos+1) + " de " + total;

}

function solapa_blog(estado)
{
	if(estado == "A")
	{
		document.getElementById("blog_post_solapa").className = "desact";
		document.getElementById("blog_posts").style.display = "none";
		document.getElementById("blog_autor_solapa").className = "act";
		document.getElementById("blog_autores").style.display = "block";
	}
	else if(estado == "P")
	{
		document.getElementById("blog_post_solapa").className = "act";
		document.getElementById("blog_posts").style.display = "block";
		document.getElementById("blog_autor_solapa").className = "desact";
		document.getElementById("blog_autores").style.display = "none";
	}
		
}