function showDivArea(areas_show, areas_hide)
{ 
    for (var i = 0; i < areas_show.length; i++) 
    { 
        ge = document.getElementById(areas_show[i]); 
        if(ge != null) ge.style.display = "block"; 
    } 
    for (var i = 0; i < areas_hide.length; i++) 
    { 
        ge = document.getElementById(areas_hide[i]); 
        if(ge != null) ge.style.display = "none";  
    } 
}