How to convert shadow as a image for DIV

HTML & CSS
1

Hello guys,
Its my live preview of my page : http://www.hamidoffice.com/kar/reza/
and also I need to make a shadow for bottom of the #greenmenu DIV which contains some images.

image of shadow : http://www.hamidoffice.com/kar/forum/footer-bg-div.jpg

css code for #greenmenu

#wrap Content #greenmenu{
float:left;
margin-top:70px;
margin-left:350px;
}

and html code ( child of content DIV)

  						<div id="greenmenu">

								<img src="images/green0.png" />
								<img src="images/green1.png" />
								<img src="images/green2.png" />
								<img src="images/green3.png" />
								<img src="images/green4.png" />
								<img src="images/green5.png" />
							</div>

Thanks :slight_smile: