Possibility to save image on LM

[buuuudzik]

Thank you for reply Erwin, but I am thinking only about functionality like uploading images to Vis. graphics. I want develop app which uses images which must be imported by user. Via HTML + JS app must transfer file to .lp file which uses io.writefile() function.

I found something like this on stackoverflow:
HTML

Code:

<input type="file" id="filechooser">

JS:

Code:

function uploadFile() {
   var blobFile = $('#filechooser').files[0];
   var formData = new FormData();
   formData.append("fileToUpload", blobFile);

   $.ajax({
      url: "upload.php",
      type: "POST",
      data: formData,
      processData: false,
      contentType: false,
      success: function(response) {
          // .. do something
      },
      error: function(jqXHR, textStatus, errorMessage) {
          console.log(errorMessage); // Optional
      }
   });
}

But of course instead upload.php I must use upload.lp and maybe it would works I will check. But I thinked that it would be much simpler,)