$(document).ready(function() {

    $("#containerWrapper").find("div").attr({ style: "display:none;" });
    $("#Div1").attr({ style: "display:block;" });

    $("#servicesSubnav").find("a").mouseover(function() {
        showDiv(this);
    });

    $("#servicesSubnav").find("a").click(function() {
        return false;
    });

});

function showDiv(divId) {
    $("#containerWrapper").find("div").attr({ "style" : "display:none;" });
    $("#servicesSubnav").find("a").attr({ "class" : ""});
    
    divId.setAttribute("class", "selected");
    divId.setAttribute("className", "selected"); // for IE
    
    var theID = divId.href.slice(divId.href.lastIndexOf("/", 0));
    $("#Div" + theID).attr({ style: "display:block;" });
}