function LogIn(){
loggedin=false;
username="";
password="";
username=prompt("Username:","");
username=username.toLowerCase();
password=prompt("Password:","");
password=password.toLowerCase();

if (username=="newarticle" && password=="newdesign") { 
loggedin=true;
window.location="article_bag_product_c.html";
}

if (loggedin==false) {
alert("Invalid login!");
}
}