Before you use this script, you should definantly create a css menu first. After done you can add this to your html header:
Code:
<script type="text/javascript">
$(document).ready(function(){
$('.menu > li:first').addClass('activeMenuLink');
$('.menu > li').click(function(){
if (!$(this).hasClass('activeMenuLink')) {
$('.menu > li').removeClass('activeMenuLink');
$(this).addClass('activeMenuLink');
$('.content div').slideUp('1500');
$('.content div:eq(' + $('.menu > li').index(this) + ')').slideDown('1500');
}
})
});
</script>
What the script does is basically when a Menu item is clicked the div will slide to the next div. Instead of you having to link the pages and users having to navigate to different pages.