tk_sitemap_on = new Image;
tk_sitemap_off = new Image;
tk_sitemap_on.src = "/img/techmenu_2_on.gif";
tk_sitemap_off.src = "/img/techmenu_2_off.gif";

tk_mail_on = new Image;
tk_mail_off = new Image;
tk_mail_on.src = "/img/techmenu_3_on.gif";
tk_mail_off.src = "/img/techmenu_3_off.gif";

tk_contacts_on = new Image;
tk_contacts_off = new Image;
tk_contacts_on.src = "/img/techmenu_4_on.gif";
tk_contacts_off.src = "/img/techmenu_4_off.gif";

dvlp_on = new Image;
dvlp_off = new Image;
dvlp_on.src = "/img/developer_logo_on.gif";
dvlp_off.src = "/img/developer_logo_off.gif";

function bot(x, y)
{
{document.images[x].src=eval(y+'.src'); }
}