private string SaveFileToDisk(HttpPostedFileBase file, string name, string register, int vnr)
{
string filtype;
string seofilename = RegisterUrls.MakeSeoFriendlyDocumentName(file, out filtype, out seofilename);
string filename = register + "_" + name + "_v" + vnr + "_" + seofilename + "." + filtype;
var path = Path.Combine("", filename);
file.SaveAs(path);
return filename;
}