img (graphic) elements can have an onclick attribute, which can be used to fire a function and that would in turn show and hide divs or other images or whatever your panels are. It's very simple and doesn't require alot of the convoluted code that you will find googling on the subject. here's some quasi code that might actually work:
Code:
<style>
.hide{
display:none;
}
</style>
<img src="logo1.jpg" onclick="showstuff('div1')">
<img src="logo2.jpg" onclick="showstuff('div2')">
<div class="hide" id="div1">Div one is here</div>
<div class="hide" id="div2">Div two is here</div>
<script type="text/javascript">
var shownDiv;
function showstuff(divID){
if (shownDiv){
document.getElementById(shownDiv).style.display="none";
}
document.getElementById(divID).style.display="block";
shownDiv=divID;
}
</script>