Original Image is defualt not Thumbnail..

When your in your default text editor where you can browse and upload images i want to change it so THUMBNAIL is not the default, i want ORIGINAL IMAGE to be set as the default.

Looking around in INLINE-UPLOADING.php i see where it builds the code and toggle button to switch between THUMBNAIL and ORIGINAL IMAGE but how would i code it so the ORIGINAL IMAGE is the default not THUMBNAIL in the image browser?

THanks!