Some help needed for guides.

Question

Hi,
I need this script, or another, to place guides in "dead-centre" (50%/50%)horizontal and vertical!
Since I'm a nobody in Jsx I need some help, badly!! :)
For 2 day's I've seen nothing but "errors" :(
Can somebody help me, please?
Regards
Mahon
Code: start
// make guideline
function guideLine(position, type) {
// types: Vrtc & Hrzn
// =======================================================
var id296 = charIDToTypeID( "Mk " );
var desc50 = new ActionDescriptor();
var id297 = charIDToTypeID( "Nw " );
var desc51 = new ActionDescriptor();
var id298 = charIDToTypeID( "Pstn" );
var id299 = charIDToTypeID( "#Pxl" );
desc51.putUnitDouble( id298, id299, position );
var id300 = charIDToTypeID( "Ornt" );
var id301 = charIDToTypeID( "Ornt" );
var id302 = charIDToTypeID( type );
desc51.putEnumerated( id300, id301, id302 );
var id303 = charIDToTypeID( "Gd " );
desc50.putObject( id297, id303, desc51 );
executeAction( id296, desc50, DialogModes.NO );
Code: End

Answer 1

Please try this...
var strtRulerUnits = app.preferences.rulerUnits;
var strtTypeUnits = app.preferences.typeUnits;
app.preferences.rulerUnits = Units.PIXELS;
app.preferences.typeUnits = TypeUnits.PIXELS;
guideLine(app.activeDocument.width.value/2, 'Vrtc');
guideLine(app.activeDocument.height.value/2, 'Hrzn');
app.preferences.rulerUnits = strtRulerUnits;
app.preferences.typeUnits = strtTypeUnits;
function guideLine(position, type){
    var desc27 = new ActionDescriptor();
        var desc28 = new ActionDescriptor();
        desc28.putUnitDouble( app.charIDToTypeID('Pstn'), app.charIDToTypeID('#Pxl'), position );
        desc28.putEnumerated( app.charIDToTypeID('Ornt'), app.charIDToTypeID('Ornt'), app.charIDToTypeID(type) );
    desc27.putObject( app.charIDToTypeID('Nw  '), app.charIDToTypeID('Gd  '), desc28 );
    executeAction( app.charIDToTypeID('Mk  '), desc27, DialogModes.NO );