function inserImage(id, fieldName, folder, folder2){
    if(id && id != " "){
	  var imagePreviewObj = document.getElementById('imagePreview' + fieldName);
	  if (folder) {
	  	folder = 'folder/' + folder + '/';
	  } else {
	  	folder = '';
	  }
	  if (id[0] == '/') {
	  	idstr = 'id';
	  } else {
	  	idstr = 'id/';
	  }
      imagePreviewObj.src = '/image/gallery/view-image/' + folder + idstr + id; //folder + '/download.php?id=' + id;
      imagePreviewObj.style.display = "block";
      if (!folder2) {
      	folder2 = '';
      }
      document.getElementById(fieldName).value = folder2 + id;   
      var addImageObj = document.getElementById('addImage' + fieldName);
      addImageObj.style.visibility = "hidden";
      var removeImageObj = document.getElementById('removeImageA' + fieldName);
      removeImageObj.style.visibility = "visible";
    }
  }
  function removeImage(obj, fieldName) {
    obj.style.visibility = "hidden";
    var imagePreviewObj = document.getElementById('imagePreview' + fieldName);
    imagePreviewObj.style.display = "none";
    document.getElementById(fieldName).value= " ";
    var addImageObj = document.getElementById('addImage' + fieldName);
    addImageObj.style.visibility = "visible";    
  }