$(function() {
    $.preloadImages('Images/webportfolio/bronx.gif','Images/webportfolio/bronx_hover.gif','Images/webportfolio/goosie.gif','Images/webportfolio/goosie_hover.gif','Images/webportfolio/keep.gif','Images/webportfolio/keep_hover.gif','Images/webportfolio/agents.gif','Images/webportfolio/agents_hover.gif','Images/webportfolio/bkfk.gif','Images/webportfolio/bkfk_hover.gif','Images/webportfolio/newcity.gif','Images/webportfolio/newcity_hover.gif','Images/webportfolio/quorum.gif','Images/webportfolio/quorum_hover.gif','Images/webportfolio/sea.gif','Images/webportfolio/sea_hover.gif','Images/webportfolio/mont.gif','Images/webportfolio/mont_hover.gif','Images/webportfolio/marino.gif','Images/webportfolio/marino_hover.gif','Images/webportfolio/restaurant.gif','Images/webportfolio/restaurant_hover.gif','Images/webportfolio/MCC.gif','Images/webportfolio/MCC_hover.gif');
    $(".portfolioitem").hover(function() {
    $(this).attr("src", $(this).attr("src").split(".").join("_hover."));
    }, function() {
    $(this).attr("src", $(this).attr("src").split("_hover.").join("."));
    });
});