if (document.images){
	SrcArr = new Array ("but1_","but2_","but3_","but4_","but5_");
	ImgArr = new Array ();
	for (i in SrcArr)
	{
		ImgArr[i] = new Image ();
		ImgArr[i].src = "/images/" + SrcArr[i] + "2" + ".gif";
	}
}