[Fix] Remove preview a image before it upload ?

[Fix] Remove preview a image before it upload ?

Hello all, I want to preview an image before it upload and it can remove preview (similar cancel select image). I only want to up 1 image, preview it and can remove it . I have code in that link and I don't know why it don't preview image, I can't solve because my ability of programming is not good? Please help me fix it, link http://jsfiddle.net/ittvn/h145xey9/19/ Thank you very much.
 
P/s: I see link example http://jsfiddle.net/ERZVC/2/ to make a reference (in this link, it up and preview a lot of image)