function btOver(imgname,img) {
	document.images[imgname].src = "img//" + img + "_2.gif";
}
function btOut(imgname,img) {
	document.images[imgname].src = "img//" + img + "_1.gif";
}

function winOpen(url, wname, wid, hei) {
	window.open(url, wname, "width="+wid+",height="+hei+",directories=no,location=no,menubar=no,status=no,toolbar=no");
}
function winOpen2(url, wname, wid, hei) {
	window.open(url, wname, "width="+wid+",height="+hei+",directories=no,location=no,menubar=no,status=no,toolbar=no,scrollbars=yes");
}