// Place your application-specific JavaScript functions and classes here
// This file is automatically included by javascript_include_tag :defaults
function get_auth_token (element) {
  if (element == null) {return null;}
  return element.up('form').
         select('[name=authenticity_token]').
         first().value;
}

function displayImage(index){
    var images =document.getElementsByClassName('medium_img');
    
    for(var i = 0; i < images.length; i++) {
        var image = images[i];
        if(i == index) {
            image.style.display="block";
        }
        else {
            image.style.display="none";
        }
    }
}