[HTML] Image link problem

Ok, so I have an image that I want to act as a link which opens in an iFrame on the page. But when I click the link, it is displayed in a new window.

Code for link:

HTML Code:

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<a href="about.html"><img src="images/template_6_21.gif" width="43" height="34" class="foo" target="content"></a>

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Class foo is declared in the header and gets rid of the blue round the image link.

iFrame code:

HTML Code:

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    <IFRAME
                SRC="home.html"
                NAME="content"
                WIDTH="579"
                HEIGHT="376"
                FRAMEBORDER=0;
                MARGINWIDTH=0;
                MARGINHEIGHT=0;
                SCROLLING="YES">
      </IFRAME>

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+REP for any help.

HTML Code:

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<a href="about.html" target="content"><img src="images/template_6_21.gif" width="43" height="34" class="foo"></a>

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