function MM_preloadImages() {
    var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];} }

    }

    function preload() {
    MM_preloadImages( 'images/our_company_over.gif','images/our_services_over.gif',
                                 'images/info_request_over.gif','images/sponsorships_over.gif',
                                 'images/trade_shows_over.gif',''
                                 )
                        }