In line 16, the original script had row as the last variable. It needs to be column. Same with line 17, but it should be row. The below script works.
#target photoshop
var row = 2;
var column = 3;
var lineSize = 15 //new
app.preferences.rulerUnits = Units.PIXELS; //new
if(app.documents.length>0){
var doc = activeDocument;
try{
var sBounds = doc.selection.bounds;
var lineAdjW = lineSize/row
var lineAdjH = lineSize/column
var sWidth = (parseFloat(sBounds[2]) -parseFloat(sBounds[0]))/column - lineSize + lineSize/(column ); //modified
var sHeight = (parseFloat(sBounds[3]) -parseFloat(sBounds[1]))/row - lineSize + lineSize/(row ) ; //modified
var leftSide = parseFloat (sBounds[0]);
var topSide = parseFloat (sBounds[1]);
for(var i=0;i<row;i++){
leftSide = parseFloat (sBounds[0]);
for(var j=0;j<column;j++){
Create_Rectangle (topSide, leftSide, topSide + sHeight, leftSide + sWidth) //old code
leftSide += sWidth + lineSize
}
topSide += sHeight +lineSize
}
}//end try
catch(e){alert('There is no selection')}
}
else{alert('There are no open documents')}
function Create_Rectangle(top,left,bottom,right) {
var idMk = charIDToTypeID( "Mk " );
var desc14 = new ActionDescriptor();
var idnull = charIDToTypeID( "null" );
var ref4 = new ActionReference();
var idcontentLayer = stringIDToTypeID( "contentLayer" );
ref4.putClass( idcontentLayer );
desc14.putReference( idnull, ref4 );
var idUsng = charIDToTypeID( "Usng" );
var desc15 = new ActionDescriptor();
var idType = charIDToTypeID( "Type" );
var desc16 = new ActionDescriptor();
var idClr = charIDToTypeID( "Clr " );
var desc17 = new ActionDescriptor();
var idRd = charIDToTypeID( "Rd " );
desc17.putDouble( idRd, 0.000000 );
var idGrn = charIDToTypeID( "Grn " );
desc17.putDouble( idGrn, 0.000000 );
var idBl = charIDToTypeID( "Bl " );
desc17.putDouble( idBl, 0.000000 );
var idRGBC = charIDToTypeID( "RGBC" );
desc16.putObject( idClr, idRGBC, desc17 );
var idsolidColorLayer = stringIDToTypeID( "solidColorLayer" );
desc15.putObject( idType, idsolidColorLayer, desc16 );
var idShp = charIDToTypeID( "Shp " );
var desc18 = new ActionDescriptor();
var idunitValueQuadVersion = stringIDToTypeID( "unitValueQuadVersion" );
desc18.putInteger( idunitValueQuadVersion, 1 );
var idTop = charIDToTypeID( "Top " );
var idPxl = charIDToTypeID( "#Pxl" );
desc18.putUnitDouble( idTop, idPxl, top );
var idLeft = charIDToTypeID( "Left" );
var idPxl = charIDToTypeID( "#Pxl" );
desc18.putUnitDouble( idLeft, idPxl, left );
var idBtom = charIDToTypeID( "Btom" );
var idPxl = charIDToTypeID( "#Pxl" );
desc18.putUnitDouble( idBtom, idPxl, bottom );
var idRght = charIDToTypeID( "Rght" );
var idPxl = charIDToTypeID( "#Pxl" );
desc18.putUnitDouble( idRght, idPxl, right );
var idtopRight = stringIDToTypeID( "topRight" );
var idPxl = charIDToTypeID( "#Pxl" );
desc18.putUnitDouble( idtopRight, idPxl, 0.000000 );
var idtopLeft = stringIDToTypeID( "topLeft" );
var idPxl = charIDToTypeID( "#Pxl" );
desc18.putUnitDouble( idtopLeft, idPxl, 0.000000 );
var idbottomLeft = stringIDToTypeID( "bottomLeft" );
var idPxl = charIDToTypeID( "#Pxl" );
desc18.putUnitDouble( idbottomLeft, idPxl, 0.000000 );
var idbottomRight = stringIDToTypeID( "bottomRight" );
var idPxl = charIDToTypeID( "#Pxl" );
desc18.putUnitDouble( idbottomRight, idPxl, 0.000000 );
var idRctn = charIDToTypeID( "Rctn" );
desc15.putObject( idShp, idRctn, desc18 );
var idstrokeStyle = stringIDToTypeID( "strokeStyle" );
var desc19 = new ActionDescriptor();
var idstrokeStyleVersion = stringIDToTypeID( "strokeStyleVersion" );
desc19.putInteger( idstrokeStyleVersion, 2 );
var idstrokeEnabled = stringIDToTypeID( "strokeEnabled" );
desc19.putBoolean( idstrokeEnabled, true );
var idfillEnabled = stringIDToTypeID( "fillEnabled" );
desc19.putBoolean( idfillEnabled, true );
var idstrokeStyleLineWidth = stringIDToTypeID( "strokeStyleLineWidth" );
var idPxl = charIDToTypeID( "#Pxl" );
desc19.putUnitDouble( idstrokeStyleLineWidth, idPxl, 1.000000 );
var idstrokeStyleLineDashOffset = stringIDToTypeID( "strokeStyleLineDashOffset" );
var idPnt = charIDToTypeID( "#Pnt" );
desc19.putUnitDouble( idstrokeStyleLineDashOffset, idPnt, 0.000000 );
var idstrokeStyleMiterLimit = stringIDToTypeID( "strokeStyleMiterLimit" );
desc19.putDouble( idstrokeStyleMiterLimit, 100.000000 );
var idstrokeStyleLineCapType = stringIDToTypeID( "strokeStyleLineCapType" );
var idstrokeStyleLineCapType = stringIDToTypeID( "strokeStyleLineCapType" );
var idstrokeStyleButtCap = stringIDToTypeID( "strokeStyleButtCap" );
desc19.putEnumerated( idstrokeStyleLineCapType, idstrokeStyleLineCapType, idstrokeStyleButtCap );
var idstrokeStyleLineJoinType = stringIDToTypeID( "strokeStyleLineJoinType" );
var idstrokeStyleLineJoinType = stringIDToTypeID( "strokeStyleLineJoinType" );
var idstrokeStyleMiterJoin = stringIDToTypeID( "strokeStyleMiterJoin" );
desc19.putEnumerated( idstrokeStyleLineJoinType, idstrokeStyleLineJoinType, idstrokeStyleMiterJoin );
var idstrokeStyleLineAlignment = stringIDToTypeID( "strokeStyleLineAlignment" );
var idstrokeStyleLineAlignment = stringIDToTypeID( "strokeStyleLineAlignment" );
var idstrokeStyleAlignInside = stringIDToTypeID( "strokeStyleAlignInside" );
desc19.putEnumerated( idstrokeStyleLineAlignment, idstrokeStyleLineAlignment, idstrokeStyleAlignInside );
var idstrokeStyleScaleLock = stringIDToTypeID( "strokeStyleScaleLock" );
desc19.putBoolean( idstrokeStyleScaleLock, false );
var idstrokeStyleStrokeAdjust = stringIDToTypeID( "strokeStyleStrokeAdjust" );
desc19.putBoolean( idstrokeStyleStrokeAdjust, false );
var idstrokeStyleLineDashSet = stringIDToTypeID( "strokeStyleLineDashSet" );
var list2 = new ActionList();
desc19.putList( idstrokeStyleLineDashSet, list2 );
var idstrokeStyleBlendMode = stringIDToTypeID( "strokeStyleBlendMode" );
var idBlnM = charIDToTypeID( "BlnM" );
var idNrml = charIDToTypeID( "Nrml" );
desc19.putEnumerated( idstrokeStyleBlendMode, idBlnM, idNrml );
var idstrokeStyleOpacity = stringIDToTypeID( "strokeStyleOpacity" );
var idPrc = charIDToTypeID( "#Prc" );
desc19.putUnitDouble( idstrokeStyleOpacity, idPrc, 100.000000 );
var idstrokeStyleContent = stringIDToTypeID( "strokeStyleContent" );
var desc20 = new ActionDescriptor();
var idClr = charIDToTypeID( "Clr " );
var desc21 = new ActionDescriptor();
var idRd = charIDToTypeID( "Rd " );
desc21.putDouble( idRd, 121.991998 );
var idGrn = charIDToTypeID( "Grn " );
desc21.putDouble( idGrn, 121.991998 );
var idBl = charIDToTypeID( "Bl " );
desc21.putDouble( idBl, 121.991998 );
var idRGBC = charIDToTypeID( "RGBC" );
desc20.putObject( idClr, idRGBC, desc21 );
var idsolidColorLayer = stringIDToTypeID( "solidColorLayer" );
desc19.putObject( idstrokeStyleContent, idsolidColorLayer, desc20 );
var idstrokeStyleResolution = stringIDToTypeID( "strokeStyleResolution" );
desc19.putDouble( idstrokeStyleResolution, 300.000000 );
var idstrokeStyle = stringIDToTypeID( "strokeStyle" );
desc15.putObject( idstrokeStyle, idstrokeStyle, desc19 );
var idcontentLayer = stringIDToTypeID( "contentLayer" );
desc14.putObject( idUsng, idcontentLayer, desc15 );
var idLyrI = charIDToTypeID( "LyrI" );
desc14.putInteger( idLyrI, 27 );
executeAction( idMk, desc14, DialogModes.NO );
};
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