function hideAllPublications()
{
    /*
    id_annualreports
    id_presentations
    id_posters    
    
    document.getElementById('').style.display = "none";
    document.getElementById('').style.display = "block"; 
    */
    
    document.getElementById('id_annualreports').style.display = "none";
    document.getElementById('id_presentations').style.display = "none";
    /*
     document.getElementById('id_posters').style.display = "none";
     */
        
}

function showPublication( idname ){
    
    if (document.getElementById( idname ).style.display == "block" ){
        document.getElementById( idname ).style.display = "none";
    }else{
        document.getElementById( idname ).style.display = "block";
    }
    
}