Image. This button provides an easy way to insert an image into an Article. Images may be inserted from the 'images' folder and may also be uploaded. When you click the Image button in your editor or the Select button on a media field, a window pops up, as shown below:
Directory. The current directory on the host server. This is the 'images' directory under your Joomla! home directory. Use the drop-down list box to select a subdirectory.
Up. Navigate to the parent directory. Note that the top directory for this function is 'images'. You can not navigate to a higher directory.
Insert. Insert the selected image. The insert point will be the current cursor position. You will see the image display inside the edit window.
Cancel. Cancel the operation and close the popup window. You can cancel also in clicking the X at right top corner.
Thumbnail Browse Area. Click on an image thumbnail to select the image. Click on a folder icon to navigate to that subdirectory.
Start Upload. Once you have selected a file, press this button to upload the file to the currently selected folder. The thumbnail for the new image will now show in the thumbnail area.