if(document.images) {

var onImgs = new Array();

onImgs["home"] = new Image(48,20);
onImgs["home"].src = "menu/home_on.gif";

onImgs["exhibition"] = new Image(115,20);
onImgs["exhibition"].src = "menu/exhibition_on.gif";

onImgs["teacher"] = new Image(60,20);
onImgs["teacher"].src = "menu/teacher_on.gif";

onImgs["photographer"] = new Image(92,20);
onImgs["photographer"].src = "menu/photographer_on.gif";

onImgs["reading_pictures"] = new Image(107,20);
onImgs["reading_pictures"].src = "menu/reading_pictures_on.gif";

onImgs["publications"] = new Image(83,20);
onImgs["publications"].src = "menu/publications_on.gif";

onImgs["cart"] = new Image(42,20);
onImgs["cart"].src = "menu/cart_on.gif";

onImgs["contact"] = new Image(60,20);
onImgs["contact"].src = "menu/contact_on.gif";

onImgs["t_resume"] = new Image(165,16);
onImgs["t_resume"].src = "menu/t_resume_on.gif";

onImgs["t_classes"] = new Image(165,16);
onImgs["t_classes"].src = "menu/t_classes_on.gif";

onImgs["t_resources"] = new Image(165,16);
onImgs["t_resources"].src = "menu/t_resources_on.gif";

onImgs["t_psibeta"] = new Image(165,16);
onImgs["t_psibeta"].src = "menu/t_psibeta_on.gif";

onImgs["p_buyphotos"] = new Image(165,16);
onImgs["p_buyphotos"].src = "menu/p_buyphotos_on.gif";

onImgs["p_portfolio"] = new Image(165,16);
onImgs["p_portfolio"].src = "menu/p_portfolio_on.gif";

onImgs["p_portfolio_oj"] = new Image(165,16);
onImgs["p_portfolio_oj"].src = "menu/p_portfolio_oj_on.gif";

onImgs["p_portfolio_bib"] = new Image(165,16);
onImgs["p_portfolio_bib"].src = "menu/p_portfolio_bib_on.gif";

onImgs["p_portfolio_aw"] = new Image(165,16);
onImgs["p_portfolio_aw"].src = "menu/p_portfolio_aw_on.gif";

onImgs["p_portfolio_mdr"] = new Image(165,16);
onImgs["p_portfolio_mdr"].src = "menu/p_portfolio_mdr_on.gif";

onImgs["p_resume"] = new Image(165,16);
onImgs["p_resume"].src = "menu/p_resume_on.gif";

onImgs["pt_current_exhibition"] = new Image(165,16);
onImgs["pt_current_exhibition"].src = "menu/pt_current_exhibition_on.gif";

onImgs["p_pyschpaper"] = new Image(165,16);
onImgs["p_pyschpaper"].src = "menu/p_pyschpaper_on.gif";

var offImgs = new Array();

offImgs["home"] = new Image(48,20);
offImgs["home"].src = "menu/home_off.gif";

offImgs["exhibition"] = new Image(115,20);
offImgs["exhibition"].src = "menu/exhibition_off.gif";

offImgs["teacher"] = new Image(60,20);
offImgs["teacher"].src = "menu/teacher_off.gif";

offImgs["photographer"] = new Image(92,20);
offImgs["photographer"].src = "menu/photographer_off.gif";

offImgs["reading_pictures"] = new Image(107,20);
offImgs["reading_pictures"].src = "menu/reading_pictures_off.gif";

offImgs["publications"] = new Image(83,20);
offImgs["publications"].src = "menu/publications_off.gif";

offImgs["cart"] = new Image(42,20);
offImgs["cart"].src = "menu/cart_off.gif";

offImgs["contact"] = new Image(60,20);
offImgs["contact"].src = "menu/contact_off.gif";

offImgs["t_resume"] = new Image(165,16);
offImgs["t_resume"].src = "menu/t_resume_off.gif";

offImgs["t_classes"] = new Image(165,16);
offImgs["t_classes"].src = "menu/t_classes_off.gif";

offImgs["t_resources"] = new Image(165,16);
offImgs["t_resources"].src = "menu/t_resources_off.gif";

offImgs["t_psibeta"] = new Image(165,16);
offImgs["t_psibeta"].src = "menu/t_psibeta_off.gif";

offImgs["p_buyphotos"] = new Image(165,16);
offImgs["p_buyphotos"].src = "menu/p_buyphotos_off.gif";

offImgs["p_portfolio"] = new Image(165,16);
offImgs["p_portfolio"].src = "menu/p_portfolio_off.gif";

offImgs["p_portfolio_oj"] = new Image(165,16);
offImgs["p_portfolio_oj"].src = "menu/p_portfolio_oj_off.gif";

offImgs["p_portfolio_bib"] = new Image(165,16);
offImgs["p_portfolio_bib"].src = "menu/p_portfolio_bib_off.gif";

offImgs["p_portfolio_aw"] = new Image(165,16);
offImgs["p_portfolio_aw"].src = "menu/p_portfolio_aw_off.gif";

offImgs["p_portfolio_mdr"] = new Image(165,16);
offImgs["p_portfolio_mdr"].src = "menu/p_portfolio_mdr_off.gif";

offImgs["p_resume"] = new Image(165,16);
offImgs["p_resume"].src = "menu/p_resume_off.gif";

offImgs["pt_current_exhibition"] = new Image(165,16);
offImgs["pt_current_exhibition"].src = "menu/pt_current_exhibition_off.gif";


offImgs["p_pyschpaper"] = new Image(165,16);
offImgs["p_pyschpaper"].src = "menu/p_pyschpaper_off.gif";

}
	
function imgOn(imgName) {
   if (document.images) { document.images[imgName].src = onImgs[imgName].src; }
}

function imgOff(imgName) {
   if (document.images) { document.images[imgName].src = offImgs[imgName].src; }
}