/* Returns the previous value of the deregistration function  */
xmlDeregisterNodeFunc xmlDeregisterNodeDefault(xmlDeregisterNodeFunc func)
/* Returns the previous value of the deregistration function  */
xmlDeregisterNodeFunc xmlDeregisterNodeDefault(xmlDeregisterNodeFunc func)
{
    xmlDeregisterNodeFunc old = xmlDeregisterNodeDefaultValue;
    __xmlRegisterCallbacks = 1;
    xmlDeregisterNodeDefaultValue = func;
    return(old);
}