boolean isNamespaceAttribute()
 PropertyDescription 
  Property NameisNamespaceAttribute  
  Description Indicates if this attribute a schema markup (ie a namespace declaration etc)  
  Remarks

For the following example xmlns, xmlns:xsi, xsi:schemaLocation would return true, ReceiptNumber would return false

<GoodsReceipt xmlns="publicid:org.xCBL:schemas/XCBL35/GoodsReceipt.xsd"
                       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                       xsi:schemaLocation="publicid:org.xCBL:schemas/XCBL35/GoodsReceipt.xsd GoodsReceipt.xsd"
                       ReceiptNumber="54545" >
   <GoodsReceiptHeader>