I need to code work by KeyPress or DownPress

When a Key is pressed it occurs in the following order:

 

1. KeyDown

2. KeyPress

3. KeyUp

 

The KeyPress event is not raised by non-character keys(e.g. SHIFT); however,

the non-character keys do raise the KeyDown and KeyUp events.

 

Explorer and Opera do not support charCode. However, they give the character information in keyCode, but only onkeypress. Onkeydown and -up keyCode contains key information.

So choose as per your requirement.

 

http://www.bloggingdeveloper.com/post/KeyPress-KeyDown-KeyUp-The-Difference-Between-Javascript-Key-Events.aspx