Have you changed whatever was causing the error? I'm not getting that error when I look at your site, and when I asked a couple other people to look at it, they said they're not getting the error either.
We found the cause of the error is from "S5 Box" plugin as we were using firefox. Once we disabled s5 box it started working.
Error in Line >> document.getElementById("s5box_register").childNodes[1].childNodes[1].childNodes[1].childNodes[1].id = "s5box_register_inner";function s5_responsive_mobile_login_register_innerhtml() {
if (document.getElementById("s5box_login")) {
if(navigator.appVersion.indexOf('MSIE 7.')!=-1 || navigator.appVersion.indexOf('MSIE 8.')!=-1){
document.getElementById("s5box_login").childNodes[0].childNodes[0].childNodes[0].childNodes[0].id = "s5box_login_inner";
}
else {
document.getElementById("s5box_login").childNodes[1].childNodes[1].childNodes[1].childNodes[1].id = "s5box_login_inner";
}
s5_responsive_mobile_login_innerhtml = document.getElementById("s5box_login_inner").innerHTML;
}
if (document.getElementById("s5box_register")) {
if(navigator.appVersion.indexOf('MSIE 7.')!=-1 || navigator.appVersion.indexOf('MSIE 8.')!=-1){
document.getElementById("s5box_register").childNodes[0].childNodes[0].childNodes[0].childNodes[0].id = "s5box_register_inner";
}
else {
document.getElementById("s5box_register").childNodes[1].childNodes[1].childNodes[1].childNodes[1].id = "s5box_register_inner";
}
s5_responsive_mobile_register_innerhtml = document.getElementById("s5box_register_inner").innerHTML;
}
s5_responsive_mobile_login_register();
}