TiXmlElement *xml2 = xml->FirstChildElement(elem);
if (xml2)
{
const char *c = xml2->Attribute(att);
const char *c = xml2->Attribute(att)->c_str();
if (c)
*toChange = atoi(c);
if (xml)
const char *c = xml->Attribute(att);
const char *c = xml->Attribute(att)->c_str();