{
  "layout": "form", 
  "title": "Customer Image",
  "table": "cust",
  "caption": [ "", "Customer", "Customers" ],
  "onecolumn":true,
  "fields": [
    {"name": "cust_name","caption": "Customer Name"},

    {"name":"cust_image","type":"file",
       "control":"file_upload","caption":"Client Document",
       "controlparams": { 
         "image": {
          "crop": [800,600],
          "format": "jpg"
        },
        "download_button":"Download",
        "data_folder": "cust_image"
       }}    
  ]
}