// JavaScript Document


function expandcollapse (postid) {    
whichpost = document.getElementById(postid);       
whichpost.className="visible";
if (postid=="ContTabul1") 
{       
whichpost = document.getElementById("ContTabul2");       
whichpost.className="invisible";
boton1 = document.getElementById("bt1");       
boton1.className="activo";
boton2 = document.getElementById("bt2");       
boton2.className="inactivo";
    }   
 else {
 	whichpost = document.getElementById("ContTabul1");       
	whichpost.className="invisible";
	boton2 = document.getElementById("bt2");       
	boton2.className="activo";
	boton1 = document.getElementById("bt1");       
	boton1.className="inactivo";
		}
}