signouton = new Image();
signouton.src = "/Images/gui/btn_signout_on.gif";

signoutoff = new Image();
signoutoff.src = "/Images/gui/btn_signout.gif";

function Button_Active (hName) {
imgOn = eval(hName + "on.src");
document [hName].src = imgOn;
}
function Button_InActive (hName) {
imgOff = eval(hName + "off.src");
document [hName].src = imgOff;
}