function moveover(oImg){
	var imgsrc
	imgsrc = oImg.id + "_on.gif"
	//alert(imgsrc)
	document.getElementById(oImg.id).src="images/" + imgsrc
	oImg.style.cursor = 'hand'
}

function moveback(oImg){
	var imgsrc
	imgsrc = oImg.id + "_off.gif"
	//alert(imgsrc)
	document.getElementById(oImg.id).src="images/" + imgsrc
}