Newbie with mouseover issue

Newbie with mouseover issue

Hello,
Here is a page for you to look at http://www.theremotedoctor.co.uk/karsuzuki.html?scrollto=selection
On my site that i am putting together i have some jQuery onclick.
If you go to the page as mentioned above you will see that on the right of the page are item selections.
These work from onclick & a photo is then loaded of that selected item.

If you hover over Keys & Remotes then come down to HONDA there is a fly out menu attached to HONDA but it works from onclick & i would like it to work onmouseover

I altered the jQuery code so it worked onmouseover fine but then my onclick for item selections did not work.
I have now put the jQuery back as it was but stumped how to achieve my goal.
Below is my jQuery.

  1.     function replaceMainImage(imgSrc, partNumber, myContent) {
            $('#content a').get(0).search = 'partNumber=' + partNumber;
            $('#mainImage').attr('src', imgSrc)
            $('#mainImage').addClass('img-border');
            $('html, body').animate({
                scrollTop: $("#mainImage").offset().top
            }, 1000);
            $('.tooltip').tooltipster('destroy');
            $('.tooltip').tooltipster({
                trigger: 'hover',
                autoclose: 'false',
                timer: '700',
                animation: 'fade',
                delay: 200,
                //multiple: true,
                restoration: 'current',
                position: 'top',
                contentAsHTML: true,
                maxWidth: 300,
                content: myContent,
            }).hover(function() {
                $(this).tooltipster('show');
            }, function() {
                $(this).tooltipster('hide');
            }).on('click', function() {
                $(this).tooltipster('show');
            });
        }    $(document).ready(function() {
            $('.tooltip').tooltipster();
            $('.sub-menu').hide();
            $("li:has(ul)").click(function() {
                $("ul", this).slideDown();
            });
        });
        $(document).ready(function($) {
        $(".scroll").click(function(event){    
            event.preventDefault();
            $('html,body').animate({scrollTop:$(this.hash).offset().top}, 1000);
        });
    });