function loginValidate(frm){

    if(frm.email.value==""){
        alert("You cannot leave Email field empty.");
        frm.email.focus();
        return false;
    }
    
    if(frm.email.value.indexOf("@")==-1){
        alert("This email address seems wrong. Please check the prefix and '@' sign.");
        frm.email.focus();
        return false;
    }
    
    if(frm.password.value==""){
        alert("You cannot leave Password field empty.");
        frm.password.focus();
        return false;
    }
    
    return true;
}