Javascript Incompatibility with IE and FF (call function)

Question

i was writing some code in javascript and i need it to work on most browsers but it only works in googleChrome, IE and FF dont call this function:

<script type="text/javascript">
  showLocation(<?php print "\"$citta2\""?>,<?php print "\"$row[nome] $row[cognome]\""?>,<?php print "\"$row[id]\""?>); return false;
  </script>

(i know that it doest call it because the 1st thing that its suppoed to do is make an allert) do u know of any reason why that would work only in chrome? if you need the all file i can post it below but its a bit long, also I'm positive that the problem is in that call.

edit1: here is showLocation code:

function showLocation(address2,nomi0,id0) {
            alert("1");
    var nomi1 = nomi0;
    var id1 = id0;
    geocoder.getLocations(address1, function (response) {

        if (!response || response.Status.code != 200)
        {
            alert("Errore con il primo indirizzo");
        }
        else
        {
            location1 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
            geocoder.getLocations(address2, function (response) 
            {
                if (!response || response.Status.code != 200)
                {
                    alert("Errore con il secondo indirizzo");
                }
                else
                {
                    location2 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
                    calculateDistance(nomi1,id1);
                }
            });
        }
    });
}

(it uses google maps api to get latitude and longitude of a city)

Answer 1

Not an answer(as of yet) just need more than the 600 characters allowed in comments.

First, lets make your script tag a little easier to read, and add some debugging:

<script type="text/javascript">
    try {
        if (window.showLocation)
        {
            showLocation(<?php print "'{$citta2}','{$row[nome]} {$row[cognome]}','{$row[id]}'"; ?>);
        }
        else
        {
            // if you see this message:
            // then you have a syntax error before or within the creation of showLocation
            alert("showLocation has not been created!");
        }
    }
    catch (e) {
        alert("Error from caller: " + e);
    }
</script>

And now in your other code, add some debugging:

function showLocation(address2,nomi0,id0) {
    try {
        alert("1");
        var nomi1 = nomi0;
        var id1 = id0;
        geocoder.getLocations(address1, function (response)
        {
            try
            {
                if (!response || response.Status.code != 200)
                {
                    alert("Errore con il primo indirizzo");
                }
                else
                {
                    location1 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
                    geocoder.getLocations(address2, function (response) 
                    {
                        try
                        {
                            if (!response || response.Status.code != 200)
                            {
                                alert("Errore con il secondo indirizzo");
                            }
                            else
                            {
                                location2 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
                                calculateDistance(nomi1,id1);
                            }
                        }
                        catch (e)
                        {
                            alert("Error in callback#2: "+ e);
                        }
                    });
                }
            }
            catch (e)
            {
                alert("Error in callback#1: " + e);
            }
        });
    }
    catch (e)
    {
        alert("Error in functon: " + e);
    }
}

_Added even more debug alerts_