home_over = new Image(); home_over.src = "web/bg_images/home_over.gif";
 news_over = new Image(); news_over.src = "web/bg_images/news_over.gif";
 concurse_over = new Image(); concurse_over.src = "web/bg_images/concurse_over.gif";
 forum_over = new Image(); forum_over.src = "web/bg_images/forum_over.gif";
 deliver_over = new Image(); deliver_over.src = "web/bg_images/deliver_over.gif";
 cart_over = new Image(); cart_over.src = "web/bg_images/cart_over.gif";
 help_over = new Image(); help_over.src = "web/bg_images/help_over.gif";
 contacts_over = new Image(); contacts_over.src = "web/bg_images/contacts_over.gif";

 function on(obj)
{
 document.getElementById(obj).src="web/bg_images/"+obj+"_over.gif";
}

 function out(obj)
{
 document.getElementById(obj).src="web/bg_images/"+obj+".gif";
}