Photoshop, Automate a gradient?

Question

This is what I have come up with so far,
but at the bottom you can see i am a little stuck.
Any suggestions? Please
tell application "Adobe Photoshop CS5.1"
  activate
          set ruler units of settings to point units
          tell current document
                    do action "TightCrop" from "NEW CROP SET"
  -- set dimension from the open file.
                    set {height:originalHeight, width:originalWidth, resolution:OriginalReso} to it
  -- GT
  --Ratio Required is 1000(w) x 1000 (h)
                    set targetWidth to 1000
                    set targetHeight to 1000
  --Add percentage as a number for the amount of white border
                    set BorderIncrease to 20
  --Everything below should no longer need to be adjusted.
  --borders as point width
                    set borderHeight to ((targetHeight / 100) * BorderIncrease) + targetHeight
                    set borderWidth to ((targetWidth / 100) * BorderIncrease) + targetWidth
                    set InnerFrameWidth to targetWidth * ((100 - BorderIncrease) / 100)
                    set InnerFrameHeight to targetHeight * ((100 - BorderIncrease) / 100)
  --Ratio of the open document
                    set imageRatio to (originalWidth / originalHeight)
  --Ratio of the Target image
                    set thetargetRatio to targetWidth / targetHeight
  --reflection
                    set current layer to layer "Main Image" -- select
                    tell current layer to if not visible then set visible to true -- must be visible to fill
  duplicate current layer
                    set current layer to layer "Main Image copy"
  resize canvas height (2 * originalHeight) anchor position top center
                    tell current layer
  scale horizontal scale 100 vertical scale -100 anchor position bottom center
                    end tell
                    do action "Quick Mask" from "NEW CROP SET"
  --Do gradient fill from (0,0) to (0,(2*originalHeight)
  --with gradient tool(Refelction Grad)
  --or the settings
  --From: 95.5 points. 2969.6 points
  --To: 98.5 points. -1 points
  --Type: linear
  --With Dither
  --With Transparency
  --With: gradient
  --Name: "ReflectionGrad‘
  --Form: custom stops
  --Interpolation: 4096
  --Colors: color stop list
  --color stop
  --Type: foreground color
  --Location: 0
  --Midpoint: 50
  --color stop
  --Type: foreground color
  --Location: 4096
  --Midpoint: 50
  --Transparencvp transparency stop list
  --transparency stop
  --Opacity: 100%
  --Location: 0
  --Midpoint: 50
  --transparency stop
  --Opacity: 100%
  --Location: 1638
  --Midpoint: 50
  --transparency stop
  --Opacity: 50.2%
  --Location: 2048
  --Midpoint: 50
  --transparency stop
  --Opacity: 0%
  --Location: 2053
  --Midpoint: 50
  --transparency stop
  --Opacity: 0%
  --Location: 4096
  --Midpoint: 50
          end tell
end tell

Answer 1

I've used the listener, and this is the bit that I need to add in to the script? How do I that and use the variable (originalHeight) from the applescript.
Looking at the script below
  desc37.putUnitDouble( idHrzn, idRlt, 0 );
        var idVrtc = charIDToTypeID( "Vrtc" );
        var idRlt = charIDToTypeID( "#Rlt" );
        desc37.putUnitDouble( idVrtc, idRlt, 54415.560991 );  From every thing that I can tell this figure here needs to be replaced with (2 * originalHeight) of the applescript
    var idPnt = charIDToTypeID( "Pnt " );
    desc36.putObject( idFrom, idPnt, desc37 );
    var idT = charIDToTypeID( "T   " );
        var desc38 = new ActionDescriptor();
        var idHrzn = charIDToTypeID( "Hrzn" );
        var idRlt = charIDToTypeID( "#Rlt" );
        desc38.putUnitDouble( idHrzn, idRlt, 0 );
        var idVrtc = charIDToTypeID( "Vrtc" );
        var idRlt = charIDToTypeID( "#Rlt" );
        desc38.putUnitDouble( idVrtc, idRlt, 0 );
FULL SCRIPT BELOW
// =======================================================
var idslct = charIDToTypeID( "slct" );
    var desc35 = new ActionDescriptor();
    var idnull = charIDToTypeID( "null" );
        var ref24 = new ActionReference();
        var idGrTl = charIDToTypeID( "GrTl" );
        ref24.putClass( idGrTl );
    desc35.putReference( idnull, ref24 );
    var iddontRecord = stringIDToTypeID( "dontRecord" );
    desc35.putBoolean( iddontRecord, true );
    var idforceNotify = stringIDToTypeID( "forceNotify" );
    desc35.putBoolean( idforceNotify, true );
executeAction( idslct, desc35, DialogModes.NO );
// =======================================================
var idGrdn = charIDToTypeID( "Grdn" );
    var desc36 = new ActionDescriptor();
    var idFrom = charIDToTypeID( "From" );
        var desc37 = new ActionDescriptor();
        var idHrzn = charIDToTypeID( "Hrzn" );
        var idRlt = charIDToTypeID( "#Rlt" );
        desc37.putUnitDouble( idHrzn, idRlt, 10514.733934 );
        var idVrtc = charIDToTypeID( "Vrtc" );
        var idRlt = charIDToTypeID( "#Rlt" );
        desc37.putUnitDouble( idVrtc, idRlt, 0 );
    var idPnt = charIDToTypeID( "Pnt " );
    desc36.putObject( idFrom, idPnt, desc37 );
    var idT = charIDToTypeID( "T   " );
        var desc38 = new ActionDescriptor();
        var idHrzn = charIDToTypeID( "Hrzn" );
        var idRlt = charIDToTypeID( "#Rlt" );
        desc38.putUnitDouble( idHrzn, idRlt, 0 );
        var idVrtc = charIDToTypeID( "Vrtc" );
        var idRlt = charIDToTypeID( "#Rlt" );
        desc38.putUnitDouble( idVrtc, idRlt, 0 );
    var idPnt = charIDToTypeID( "Pnt " );
    desc36.putObject( idT, idPnt, desc38 );
    var idType = charIDToTypeID( "Type" );
    var idGrdT = charIDToTypeID( "GrdT" );
    var idLnr = charIDToTypeID( "Lnr " );
    desc36.putEnumerated( idType, idGrdT, idLnr );
    var idDthr = charIDToTypeID( "Dthr" );
    desc36.putBoolean( idDthr, true );
    var idUsMs = charIDToTypeID( "UsMs" );
    desc36.putBoolean( idUsMs, true );
    var idGrad = charIDToTypeID( "Grad" );
        var desc39 = new ActionDescriptor();
        var idNm = charIDToTypeID( "Nm  " );
        desc39.putString( idNm, "ReflectionGrad" );
        var idGrdF = charIDToTypeID( "GrdF" );
        var idGrdF = charIDToTypeID( "GrdF" );
        var idCstS = charIDToTypeID( "CstS" );
        desc39.putEnumerated( idGrdF, idGrdF, idCstS );
        var idIntr = charIDToTypeID( "Intr" );
        desc39.putDouble( idIntr, 4096.000000 );
        var idClrs = charIDToTypeID( "Clrs" );
            var list3 = new ActionList();
                var desc40 = new ActionDescriptor();
                var idType = charIDToTypeID( "Type" );
                var idClry = charIDToTypeID( "Clry" );
                var idFrgC = charIDToTypeID( "FrgC" );
                desc40.putEnumerated( idType, idClry, idFrgC );
                var idLctn = charIDToTypeID( "Lctn" );
                desc40.putInteger( idLctn, 0 );
                var idMdpn = charIDToTypeID( "Mdpn" );
                desc40.putInteger( idMdpn, 50 );
            var idClrt = charIDToTypeID( "Clrt" );
            list3.putObject( idClrt, desc40 );
                var desc41 = new ActionDescriptor();
                var idType = charIDToTypeID( "Type" );
                var idClry = charIDToTypeID( "Clry" );
                var idFrgC = charIDToTypeID( "FrgC" );
                desc41.putEnumerated( idType, idClry, idFrgC );
                var idLctn = charIDToTypeID( "Lctn" );
                desc41.putInteger( idLctn, 4096 );
                var idMdpn = charIDToTypeID( "Mdpn" );
                desc41.putInteger( idMdpn, 50 );
            var idClrt = charIDToTypeID( "Clrt" );
            list3.putObject( idClrt, desc41 );
        desc39.putList( idClrs, list3 );
        var idTrns = charIDToTypeID( "Trns" );
            var list4 = new ActionList();
                var desc42 = new ActionDescriptor();
                var idOpct = charIDToTypeID( "Opct" );
                var idPrc = charIDToTypeID( "#Prc" );
                desc42.putUnitDouble( idOpct, idPrc, 100.000000 );
                var idLctn = charIDToTypeID( "Lctn" );
                desc42.putInteger( idLctn, 0 );
                var idMdpn = charIDToTypeID( "Mdpn" );
                desc42.putInteger( idMdpn, 50 );
            var idTrnS = charIDToTypeID( "TrnS" );
            list4.putObject( idTrnS, desc42 );
                var desc43 = new ActionDescriptor();
                var idOpct = charIDToTypeID( "Opct" );
                var idPrc = charIDToTypeID( "#Prc" );
                desc43.putUnitDouble( idOpct, idPrc, 100.000000 );
                var idLctn = charIDToTypeID( "Lctn" );
                desc43.putInteger( idLctn, 1638 );
                var idMdpn = charIDToTypeID( "Mdpn" );
                desc43.putInteger( idMdpn, 50 );
            var idTrnS = charIDToTypeID( "TrnS" );
            list4.putObject( idTrnS, desc43 );
                var desc44 = new ActionDescriptor();
                var idOpct = charIDToTypeID( "Opct" );
                var idPrc = charIDToTypeID( "#Prc" );
                desc44.putUnitDouble( idOpct, idPrc, 50.196078 );
                var idLctn = charIDToTypeID( "Lctn" );
                desc44.putInteger( idLctn, 2048 );
                var idMdpn = charIDToTypeID( "Mdpn" );
                desc44.putInteger( idMdpn, 50 );
            var idTrnS = charIDToTypeID( "TrnS" );
            list4.putObject( idTrnS, desc44 );
                var desc45 = new ActionDescriptor();
                var idOpct = charIDToTypeID( "Opct" );
                var idPrc = charIDToTypeID( "#Prc" );
                desc45.putUnitDouble( idOpct, idPrc, 0.000000 );
                var idLctn = charIDToTypeID( "Lctn" );
                desc45.putInteger( idLctn, 2053 );
                var idMdpn = charIDToTypeID( "Mdpn" );
                desc45.putInteger( idMdpn, 50 );
            var idTrnS = charIDToTypeID( "TrnS" );
            list4.putObject( idTrnS, desc45 );
                var desc46 = new ActionDescriptor();
                var idOpct = charIDToTypeID( "Opct" );
                var idPrc = charIDToTypeID( "#Prc" );
                desc46.putUnitDouble( idOpct, idPrc, 0.000000 );
                var idLctn = charIDToTypeID( "Lctn" );
                desc46.putInteger( idLctn, 4096 );
                var idMdpn = charIDToTypeID( "Mdpn" );
                desc46.putInteger( idMdpn, 50 );
            var idTrnS = charIDToTypeID( "TrnS" );
            list4.putObject( idTrnS, desc46 );
        desc39.putList( idTrns, list4 );
    var idGrdn = charIDToTypeID( "Grdn" );
    desc36.putObject( idGrad, idGrdn, desc39 );
executeAction( idGrdn, desc36, DialogModes.NO );