function warn (warning, formName, formInput) {
	if (warning != '') {
		alert(warning);
	}
	if (formInput != '') {
		var element = eval("document.forms['"+formName+"']."+formInput);
		if (element != null) {
			if (element.tagName != 'SELECT' && element.tagName != 'select')
				element.select();
			if (!element.disabled) element.focus();
		}
	}
}