if (document.images)
{
var image0=new Image();
image0.src="graphics/random/castle.jpg";
var image1=new Image();
image1.src="graphics/random/arch.jpg";
var image2=new Image();
image2.src="graphics/random/friary.jpg";
var image3=new Image();
image3.src="graphics/random/garden.jpg";
var image4=new Image();
image4.src="graphics/random/castle2.jpg";
var image5=new Image();
image5.src="graphics/random/river.jpg";
}