How apply correct appliedCharacterStyle

Hello!

I have this script to apply the Character Style Italic  when the script find the array elements, in this case the Alphabetic letters A, B, C, ...

But only when the letters had applied the next paragraph styles:

Index Level 01 Roman

Index Level 02 Roman

Index Level 03 Roman

Index Level 04 Roman

Index Level 01 Roman Tracking-...

Index Level 02 Roman Tracking-...

Index Level 03 Roman Tracking-...

Index Level 04 Roman Tracking-...

But is not working, I think the error is this line, but I can not see the solution, Please, can you see something wrong?

myFound.appliedCharacterStyle = 'Italic';} else{}}

I know is working because if I replace this line, and I try to replace a Paragraph Style instance of a Character Style, the script works:

myFound.appliedParagraphStyle = IndexSectionHead;

THE FULL SCRIPT:

//_____________________________________________________________________________________
// COUNT ALL PARAGRAPH STYLES IN A PARAGRAPH STYLES GROUP WITH THE SAME NAME             
var Doc = app.documents[0];
var paragraphStyle1 = [];
var paragraphStyle2 = [];   
var paragraphStyle3 = []; 
var paragraphStyle4 = []; 
var counter = 0;     
var paragraphStyleGroup1 = Doc.paragraphStyleGroups.itemByName("INDEX");  
while(counter < paragraphStyleGroup1.paragraphStyles.length){      
    if(paragraphStyleGroup1.paragraphStyles[counter].name.toString().indexOf("Index Level 01 Roman Tracking-") != -1){    
        paragraphStyle1.push(paragraphStyleGroup1.paragraphStyles[counter]);} 
    if(paragraphStyleGroup1.paragraphStyles[counter].name.toString().indexOf("Index Level 02 Roman Tracking-") != -1){    
        paragraphStyle2.push(paragraphStyleGroup1.paragraphStyles[counter]);}
    if(paragraphStyleGroup1.paragraphStyles[counter].name.toString().indexOf("Index Level 03 Roman Tracking-") != -1){    
        paragraphStyle3.push(paragraphStyleGroup1.paragraphStyles[counter]);}
    if(paragraphStyleGroup1.paragraphStyles[counter].name.toString().indexOf("Index Level 04 Roman Tracking-") != -1){    
paragraphStyle4.push(paragraphStyleGroup1.paragraphStyles[counter]);}         
  counter++;}   
  
totalParagraphStyle1=paragraphStyle1.length; 
totalParagraphStyle2=paragraphStyle2.length;  
totalParagraphStyle3=paragraphStyle3.length; 
totalParagraphStyle4=paragraphStyle4.length;
//____________________________________________________________________________________
//      END COUNT ALL PARAGRAPH STYLES IN A PARAGRAPH STYLES GROUP WITH THE SAME NAME
//_____________________________________________________________________________________
// APPLY PARAGRAPH STYLE ONLY IF MATCH  
var myDoc = app.activeDocument,      
myCodes = [
    "\^A\r",
    "\^B\r",
    "\^C\r",
    "\^D\r",
    "\^E\r",
    "\^F\r",
    "\^G\r",
    "\^H\r",
    "\^I\r",
    "\^J\r",
    "\^K\r",
    "\^L\r",
    "\^M\r",
    "\^N\r",
    "\^Ñ\r",
    "\^O\r",
    "\^P\r",
    "\^Q\r",
    "\^R\r",
    "\^S\r",
    "\^T\r",
    "\^U\r",
    "\^V\r",
    "\^W\r",
    "\^X\r",
    "\^Y\r",
    "\^Z\r"
],    
C = myCodes.length,  c;      
app.findGrepPreferences = null;    
for ( c = 0; c < myCodes.length; c++) {         
    app.findGrepPreferences.findWhat = myCodes;         
    myFound = myDoc.findGrep();      
    var F = myFound.length,  f; 
    var IndexSectionHead = myDoc.paragraphStyleGroups.itemByName("INDEX").paragraphStyles.itemByName("Index Section Head");   
    var IndexLevel01Roman = myDoc.paragraphStyleGroups.itemByName("INDEX").paragraphStyles.itemByName("Index Level 01 Roman");   
    var IndexLevel02Roman = myDoc.paragraphStyleGroups.itemByName("INDEX").paragraphStyles.itemByName("Index Level 02 Roman");   
    var IndexLevel03Roman = myDoc.paragraphStyleGroups.itemByName("INDEX").paragraphStyles.itemByName("Index Level 03 Roman");   
    var IndexLevel04Roman = myDoc.paragraphStyleGroups.itemByName("INDEX").paragraphStyles.itemByName("Index Level 04 Roman");   
    for ( f = 0; f < F; f++) {    
        myFound.appliedCharacterStyle = myDoc.characterStyles[0];
        if ((myFound.appliedParagraphStyle == IndexLevel01Roman ||
            myFound.appliedParagraphStyle == IndexLevel02Roman ||
            myFound.appliedParagraphStyle == IndexLevel03Roman ||
            myFound.appliedParagraphStyle == IndexLevel04Roman
        )){ myFound.appliedCharacterStyle = 'Italic';} else{}}
       
    for(i=1; i<=totalParagraphStyle1 ;i++){
        var IndexLevel01RomanTracking = myDoc.paragraphStyleGroups.itemByName("INDEX").paragraphStyles.itemByName("Index Level 01 Roman Tracking-"+i);
    for ( f = 0; f < F; f++) {    
        myFound.appliedCharacterStyle = myDoc.characterStyles[0];
        if (myFound.appliedParagraphStyle == IndexLevel01RomanTracking) 
         {  myFound.appliedCharacterStyle = 'Italic';} else{}}}
    for(i=1; i<=totalParagraphStyle2 ;i++){
        var IndexLevel02RomanTracking = myDoc.paragraphStyleGroups.itemByName("INDEX").paragraphStyles.itemByName("Index Level 02 Roman Tracking-"+i);
    for ( f = 0; f < F; f++) {    
        myFound.appliedCharacterStyle = myDoc.characterStyles[0];
        if (myFound.appliedParagraphStyle == IndexLevel02RomanTracking) 
         {  myFound.appliedCharacterStyle = 'Italic';} else{}}}
         
    for(i=1; i<=totalParagraphStyle3 ;i++){
        var IndexLevel03RomanTracking = myDoc.paragraphStyleGroups.itemByName("INDEX").paragraphStyles.itemByName("Index Level 03 Roman Tracking-"+i);
    for ( f = 0; f < F; f++) {    
        myFound.appliedCharacterStyle = myDoc.characterStyles[0];
        if (myFound.appliedParagraphStyle == IndexLevel03RomanTracking) 
         {  myFound.appliedCharacterStyle = 'Italic';} else{}}}
    for(i=1; i<=totalParagraphStyle4 ;i++){
        var IndexLevel04RomanTracking = myDoc.paragraphStyleGroups.itemByName("INDEX").paragraphStyles.itemByName("Index Level 04 Roman Tracking-"+i);
    for ( f = 0; f < F; f++) {    
        myFound.appliedCharacterStyle = myDoc.characterStyles[0];
        if (myFound.appliedParagraphStyle == IndexLevel04RomanTracking) 
         {  myFound.appliedCharacterStyle = 'Italic';} else{}}}
} 
//_____________________________________________________________________________________
// END APPLY PARAGRAPH STYLE ONLY IF MATCH