function form_check() {
	if ( trim(document.register_form.username.value) != document.register_form.username.value ) {
		alert("Please do not use any spaces at the beginning or end of your username.");
		
		document.register_form.username.value = trim(document.register_form.username.value);
		
		document.register_form.username.select();
		document.register_form.username.focus();
		
		return false;
	}
	
	if ( document.register_form.username.value.length < 4 ) {
		alert("Please provide a username that is at least 4 characters long.");
		
		document.register_form.username.select();
		document.register_form.username.focus();
		
		return false;
	}
	
	
	
	if ( trim(document.register_form.password.value) != document.register_form.password.value ) {
		alert("Please do not use any spaces at the beginning or end of your password.");
		
		document.register_form.password.select();
		document.register_form.password.focus();
		
		return false;
	}
	
	if ( document.register_form.password.value.length < 4 ) {
		alert("Please provide a password that is at least 4 characters long.");
		
		document.register_form.password.select();
		document.register_form.password.focus();
		
		return false;
	}

	if ( document.register_form.password.value != 
	     document.register_form.password_conf.value ) {
		alert("Your password did not match.  Please try again.");
		
		document.register_form.password.select();
		document.register_form.password.focus();
			
		return false;
	}



	if ( document.register_form.mail.value.toLowerCase() != 
	     document.register_form.mail_conf.value.toLowerCase() ) {
		alert("Your email address did not match.  Please try again.");
			
		document.register_form.mail.select();
		document.register_form.mail.focus();
			
		return false;
	}



	if ( document.register_form.newsletter.checked ) {
		if ( !document.register_form.format[0].checked &&
		     !document.register_form.format[1].checked ) {
			alert("If you would like to receive our newsletter, please choose a format (HTML or text).");
			return false;
		}
	}



	document.register_form.password.value = hex_md5( (document.register_form.password.value) ); 
	document.register_form.password_conf.value = hex_md5( (document.register_form.password_conf.value) ); 
	


	return true;
}

load_on_startup("document.register_form.format[0].checked = true;")