function Login(){
var done=0;
var username=document.login.username.value;
username=username.toLowerCase();
var password=document.login.password.value;
password=password.toLowerCase();
if (username=="camd" && password=="tom") {
window.location="categories.html"; done=1;
}
if (done==0) { alert("Invalid login! Please try again or call your system administrator."); }
}