Ahha, that makes more sense 😊
The best way IMO would be to change it - I’d have the header as a tag exactly like the one I have above:
<a href="/">Click here to go home</a>
Then I’d whack in some CSS to change that link into your header image via CSS, so it downgrades nicely. The CSS you would need should be something similar to this:
#header_homelink,
#header_homelink a{width:1000px;height:93px;background"url(<a href="http://www.collectiontechnology.net/themes/site_themes/trendy_blue/CTnetHeader.jpg">http://www.collectiontechnology.net/themes/site_themes/trendy_blue/CTnetHeader.jpg</a>) no-repeat;text-indent:-5000px;}
#header_homelink a{display:block;}
So basically it changes your p tag into a big block the same size as the image, it applies your image as a background and hides the actual tag text. Then because <a> is a block within , the whole thing is clickable as a link! You might need some extra jiggery-pokery to get your right menu overlay to appear the same way though.
Hope that helps.