How can find text only in second column of cell?

Question

Hi, everyone
I only want to find second column of dollar sign
aim to apply to character style: "Bold+Italic",
I can I make it happen?
screenshot:
I have this script, can someone help me to change it's function?
if ( app.selection.length > 0 && ( app.selection[0].constructor.name == "Cell" || app.selection[0].constructor.name == "Table" ) ) {  
    if ( app.scriptPreferences.version >= 6 ) { 
        app.doScript( main, ScriptLanguage.JAVASCRIPT , [], UndoModes.ENTIRE_SCRIPT, "style every second column in selection" );          
    else { 
        main(); 
} else { 
    alert ( "Nothing or wrong selection!" ); 
function main() { 
    var myColor = "PANTONE 252 U"; 
    var myFillTint = 20; 
    var myCharStyleName = "Bold"; 
    var curSel = app.selection[0]; 
    var allCells = curSel.cells; 
    var startCol = curSel.cells[0].name.split(":")[0]*1;    
    var endCol = curSel.cells[-1].name.split(":")[0]*1;    
    var counter = startCol + 1; 
    for ( var i = 0 ; i < allCells.length; i++ ) { 
        var curCell = allCells[i]; 
        var curCol = curCell.name.split(":")[0]*1; 
        if ( curCol == counter ) { 
            curCell.fillColor = myColor; 
            curCell.fillTint = 20; 
            curCell.texts[0].appliedCharacterStyle = myCharStyleName; 
            counter = counter + 2; 
        if ( counter > endCol ) { 
            counter = startCol + 1; 
        } // end if 
    } // end for 
} // end main
John

Answer 1

Hi Chinna,
What if I add something into it, Can it working?
var doc = app.activeDocument, 
    _selection = app.selection[0]; 
    for(var i =1;i<_selection.columns.length;i+=2) 
    var _cells = _selection.columns[i].cells; 
    for(var j =0;j<_cells.length;j++) 
    // I think have to add a function in here like this:
app.findGrepPreferences = app.changeGrepPreferences = null;
app.findGrepPreferences.findWhat = "HK\\$\\'000";
                   _cells[j].texts[0].appliedCharacterStyle = "Bold+Italic"; 
app.findGrepPreferences = app.changeGrepPreferences = null;
John