backgroungd image trouble "please help"

i want to put a background image in my header
i want it to cover everything from the search box to the menu bar
seen it done on a couple of sites already like sportsgamingtv.com
please can someone help me my site is www.poetrybattles.com - - Share Your Videos

Edit style.css and findout the following

Code:

---

#header {
    width:100%;
    padding: 0;
    margin: 0;
}

---

add the below line

background-image:url(../images/yourimage.jpg);


Upload yourimage.jpg to templates/images folder.

thanks it worked right on time. your awesome