function change_current_picture_01(preview_name, image_text){
new_current_picture = (preview_name);
document.current_picture.src = new_current_picture;

document.getElementById('gallery_01_text').style.display="none"; // collapse list
document.getElementById('gallery_02_text').style.display="none"; // collapse list
document.getElementById('gallery_03_text').style.display="none"; // collapse list
document.getElementById('gallery_04_text').style.display="none"; // collapse list
document.getElementById('gallery_05_text').style.display="none"; // collapse list
document.getElementById('gallery_06_text').style.display="none"; // collapse list
document.getElementById('gallery_07_text').style.display="none"; // collapse list
document.getElementById('gallery_08_text').style.display="none"; // collapse list
document.getElementById('gallery_09_text').style.display="none"; // collapse list
document.getElementById('gallery_10_text').style.display="none"; // collapse list
document.getElementById('gallery_11_text').style.display="none"; // collapse list
document.getElementById('gallery_12_text').style.display="none"; // collapse list
document.getElementById('gallery_13_text').style.display="none"; // collapse list
document.getElementById('gallery_14_text').style.display="none"; // collapse list
document.getElementById('gallery_15_text').style.display="none"; // collapse list

document.getElementById(image_text).style.display="block"}