function swapDisplay(id)
{
    var element = document.getElementById(id);
    
    if (element.style.display == 'block')
        element.style.display = 'none';        
    else
        element.style.display = 'block';        
}  

function display(id)
{
    var element = document.getElementById(id);    
    element.style.display = 'block';        
}  

function hidde(id)
{
    var element = document.getElementById(id);  
    element.style.display = 'none';        
}