View Uploaded Image Without Saving it

i want to create a page a for book profile.
in that i have also put a image control and upload control for uploading a book image and image uploaded is stored in a seperate folder only image name is stored in database.
what i want is when user upload image he can view it on tha page without storing it on server folder directly from where image is selected and when he click on save only than image and its name is stored.
problem is i can not view uploaded image without stroing  it in folder.
is there any way i can store image temporary to view and if user dont save data image is deleted from there
or image is directly viewed from client`s pc in the page.
thanks



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