function show_right_map(ID) {
    // Hide all
    var divs = document.getElementsByTagName('div');
    for (var i = 0; i < divs.length; i++){                      
      if(divs[i].className == "map_right") { 
        divs[i].style.display = "none";
      }
    }
    
    // Show current
    document.getElementById(ID + "_map").style.display = "block";
}

function show_left_text(ID) {
    // Hide all
    var divs = document.getElementsByTagName('div');
    for (var i = 0; i < divs.length; i++){                      
      if(divs[i].className == "text_left") { 
        divs[i].style.display = "none";
      }
    }
    document.getElementById('main_map').style.display = "none";
    
    // Show current
    document.getElementById(ID + "_text").style.display = "block";
}

function show_map() {
    // Hide all
    var divs = document.getElementsByTagName('div');
    for (var i = 0; i < divs.length; i++){                      
      if(divs[i].className == "text_left" || divs[i].className == "map_right") { 
        divs[i].style.display = "none";
      }
    }
    
    document.getElementById('main_map').style.display = "block";
    document.getElementById('0_map').style.display = "block";
}