$(document).ready(function() {
    var currentPage = window.location.pathname.split("/");
    var page       = currentPage[1];
    if (page == '') 
      { page = 'home'; }
    var menuitem  = 'menu'+page;

    $('.rollover').hover(function()
      {
         if(menuitem != this.id)
           { this.src = this.src.replace(".png","-hov.png"); }

      }, function() 
      {
         if(menuitem != this.id)
           { this.src = this.src.replace("-hov.png",".png"); }

      }
    );

    var image = $('#'+menuitem).attr('src');
    $('#'+menuitem).attr('src' , image.replace('.png' , '-sel.png')); 
});