/*
functionality: Returns a new sequence number
input  : SEQID (string) - the seqencer dmsid
return : string - new sequencer number
*/
function nextSeqNumber(SEQID){
    
    var seqGenerator = loadItem(SEQID);  
    if(seqGenerator === null)
    {
        return null;
    }
  
    var prefix = seqGenerator.PREFIX;
    var sufix = seqGenerator.SUFIX;
    var stepSize = seqGenerator.STEP_SIZE;
    var includePadding = seqGenerator.ZEROPAD_AUTOGENERATED_SEQUENCE;
    
    var sequenceNo = parseFloat(seqGenerator.CURRENT_SEQUENCE_NUMBER);
    //update the project's next avalible number
    seqGenerator.CURRENT_SEQUENCE_NUMBER = ''+(sequenceNo+stepSize);
    
    var adjustedNo = '';
    if(includePadding === true){
        adjustedNo = '' + zeroFill(sequenceNo,padding, '0');
    }
    else{
        adjustedNo = '' + sequenceNo;
    }
    
    if(prefix !== null){adjustedNo = prefix + adjustedNo;} 
    if(sufix !== null){adjustedNo = adjustedNo + sufix;}
    
    return adjustedNo;
}

/*
functionality: Pads a string as instructed
input  : number(string) initial value
         width(int) total length of the number
         pChar(string) padding character
return : string - new padded number
*/
function zeroFill(number, width, pChar)
{
  width -= ('' + number).length;
  if ( width > 0 )
  {
    return new Array( width + (/\./.test( number ) ? 2 : 1) ).join( pChar ) + number;
  }
  return number;
}