function img_preload()
{
		b1=new Image();	b1.src="images/layout/menues/smalllink_bk_down.jpg";
		b2=new Image();	b2.src="images/layout/menues/landw_down.gif";
		b3=new Image();	b3.src="images/layout/menues/garten_down.gif";
		b4=new Image();	b4.src="images/layout/menues/weine_down.gif";
		b5=new Image(); b5.src="images/layout/menues/philo_down.gif";
}