function imgdown(imgid) {
	imgid.style.pixelLeft=4;
	imgid.style.pixelTop=4;
	imgid.style.filter="";
}
function imgup(imgid) {
	imgid.style.pixelLeft=0;
	imgid.style.pixelTop=0;
	imgid.style.filter="shadow(color=#c0c0c0,direction=135)";
}