String value = mimeString.substring(idx + paramName.length() + 2);
String value = mimeString.substring(idx + paramName.length() + 1);
getParameter(String paramName, String mimeString){  int idx = mimeString.indexOf(paramName + "=");  if (idx == -1)    return(null);  String value = mimeString.substring(idx + paramName.length() + 2);  idx = value.indexOf(" ");  if (idx == -1)    return(value);  else    return(value.substring(0, idx));}