var csstext = "body{display:none !important;}";
var style = document.createelement('style');
style.type = "text/css";
style.id = "anticlickjack";

try {
    style.innerhtml = csstext;
} catch (e) {
    style.stylesheet.csstext = csstext;
}

document.getelementsbytagname('head')[0].appendchild(style);

if (self === top) {
    var anticlickjack = document.getelementbyid("anticlickjack");
    anticlickjack.parentnode.removechild(anticlickjack);
} else {
    top.location = self.location;
}