if(top != self){top.location.href = location.href;}
function preload(imgObj,imgSrc) {if (document.images) {eval(imgObj + 'On = new Image()');eval(imgObj + 'On.src = imgSrc + "_roll.gif"');eval(imgObj + 'Off = new Image()');eval(imgObj + 'Off.src = imgSrc + ".gif"');}}
function img_act(imgName){if (document.images) {document[imgName].src = eval(imgName + "On.src");}}
function img_inact(imgName){if (document.images) {document[imgName].src = eval(imgName + "Off.src");}}