function hideParagraph(){
           Div =document.getElementById('contentPagina');
                       Para =Div.getElementsByTagName("p");
            for (j=0 ; j<Para.length; j++){
                    if (Para[j].style.display=="block")
Para[j].style.display="none";
                        }
}

function showDiv(element){
   document.getElementById(element).style.display = 'block';
//    document.getElementById(element+'img').style.display = 'block';
}

function hideDiv(element){
   document.getElementById(element).style.display = 'none';
//    document.getElementById(element+'img').style.display = 'none';
}