How to connect images?

Hello,

Im pretty much new to html and java.
Though i am adding some html pages to my forum, wich is going good so far.
But now i made like a navbar, for my homepage, with a image hover each time.

Only the problem is that between every image there is a gap of something like 5 pixels.
But i want to to connect, so it will look like 1 bar.
http://x-servers.forumotion.com/test-h2.htm here you can see the problem.

if you need the code to get out

Spoiler:

Thanks in advance

Use this for the navbar (removed code spaces)

Code:

<a href="http://x-servers.forumotion.com/" onmouseover="afbeeldingAan('afbeelding01')" onmouseout="afbeeldingUit('afbeelding01')"><img src="http://i608.photobucket.com/albums/tt169/Lil-Jur/contact.png" name="afbeelding01" border="0"></a><a href="" onmouseover="afbeeldingAan('afbeelding02')" onmouseout="afbeeldingUit('afbeelding02')"><img src="http://i608.photobucket.com/albums/tt169/Lil-Jur/Forumrules.png" name="afbeelding02" border="0"></a><a href="" onmouseover="afbeeldingAan('afbeelding03')" onmouseout="afbeeldingUit('afbeelding03')"><img src="http://i608.photobucket.com/albums/tt169/Lil-Jur/community-2.png" name="afbeelding03" border="0"></a><a href="" onmouseover="afbeeldingAan('afbeelding04')" onmouseout="afbeeldingUit('afbeelding04')"><img src="http://i608.photobucket.com/albums/tt169/Lil-Jur/Site.png" name="afbeelding04" border="0"></a>

Still needs remaining 3 href links.

Thank you so much, i see the problem now
And yes i know, Forum rules and Community will be custom html pages, site is still under construction and also Contact will change to a normal format, not back to the site.

Gues its solved
Lock please