(no version information, might be only in CVS)
DOMCharacterData->deleteData -- 
     Remove a range of characters from the node.
    
Description
void 
DOMCharacterData->deleteData ( int offset, int count)
     Deletes count characters starting from position 
     offset. If the sum of offset 
     and count exceeds the length, then all characters 
     to the end of the data are deleted.
    
     Throws DOMExcpetion if offset 
     is negative or greater than the number of characters in data, or if 
     count is negative.