var myDoc = app.activeDocument; 
var myLinkResult = []; 
var myLink = null; 
var source = null; 
var xref = null; 
var i = 0; 
var myRandomString = ''; 
 
app.findTextPreferences = NothingEnum.nothing; 
app.findTextPreferences.appliedCharacterStyle = myDoc.characterStyles.itemByName("start"); 
myLinkResult = app.activeDocument.findText(); 
 
for (i = 0; i < myLinkResult.length; i += 1) 
{ 
    myLink = myLinkResult[i]; 
    source = myDoc.hyperlinkTextSources.add(myLink); 
    if (myDoc.hyperlinkTextDestinations.item(myLink.contents).isValid) 
       anchor = myDoc.hyperlinkTextDestinations.item(myLink.contents); 
    else 
       anchor = myDoc.hyperlinkTextDestinations.add({destinationText:myLink, name: myLink.contents}); 
    xref = myDoc.hyperlinks.add (source, anchor); 
    myRandomString = String(Math.random()); 
    xref.name = myLink.contents + "_" + myRandomString.slice(2,); 
}