function showElement(objectID){
        var object=document.getElementById(objectID);

        if(object.style.display=="none"){
                object.style.display="block";
        }
}

function hideElement(objectID){
        var object=document.getElementById(objectID);

        if(object.style.display=="block" || object.style.display==""){
                object.style.display="none";
        }
}