if (document.images) {
b1_off = new Image(); b1_off.src="/news/b1.gif"
b1_over = new Image(); b1_over.src="/news/b1_over.gif"
b2_off = new Image(); b2_off.src="/news/b2.gif"
b2_over = new Image(); b2_over.src="/news/b2_over.gif"
b3_off = new Image(); b3_off.src="/news/b3.gif"
b3_over = new Image(); b3_over.src="/news/b3_over.gif"
b4_off = new Image(); b4_off.src="/news/b4.gif"
b4_over = new Image(); b4_over.src="/news/b4_over.gif"
}

function turn_off(ImageName) {
	if (document.images != null) {
		document[ImageName].src = eval(ImageName + "_off.src");
	}
}

function turn_over(ImageName) {
	if (document.images != null) {
		document[ImageName].src = eval(ImageName + "_over.src");
	}
}