function musicsubmit(a)
{      
    if (a.reg.value==0)
    {
        if (a.username.value=="")      { alert("Username?"); a.username.focus(); return false; }        
        if (a.email.value=="")         { alert("Email?");  a.email.focus();  return false; }
        
        if (checkEmail(a.email.value)==false)
        {
           alert("Incorrect Email!");
           a.email.focus(); 
           return false;
        }
        
        if (a.email_confirm.value=="") { alert("Confirm email?"); a.email_confirm.focus();  return false; }
        if (a.email_confirm.value!=a.email.value) { alert("Confirm email correctly!"); a.email_confirm.focus(); return false; }	 
    }    
    if (a.imagecod.value=="")  { alert("Please type the code from the image into the input box"); a.imagecod.focus(); return false; }    
    return true;    
}