function startUpload(){
			  document.getElementById('f1_upload_process').style.display = 'block';
			  document.getElementById('f1_upload_form').style.display = 'none';
			  return true;
		}

		function stopUpload(success,filename){
			  var result = '';
			  if (success == 1){
				 result = '<div class="correctspan">The file was uploaded successfully!<\/div>';
				 document.getElementById('linkfile').value=filename;
			  } else {
				 result = '<div class="errorspan">There was an error during file upload!<\/div>';
			  }
			  document.getElementById('f1_upload_process').style.display = 'none';
			  document.getElementById('f1_upload_form').innerHTML = result + '<label for="posfile">File:<\/label><input name="myfile" type="file" id="posfile" /><input type="submit" name="submitBtn" class="sbtn" value="Upload" /> <span class="small">Max 20MB.</span>';
			  //document.getElementById('preview').innerHTML = '<img src="gallery-tumb/'+filename+'">';
			  document.getElementById('f1_upload_form').style.display = 'block';      
			  return true;   
		}