Google maps api error

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Javascript

Google-Maps

IE8

Hi!

I'm using google map API to design a "earthquake map". So far, so good.

The map displays nicely in Firefox and Chrome but raises a error in IE8:

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.3)
Timestamp: Mon, 6 May 2013 10:36:29 UTC

Message: Script error
Line: 0
Char: 0
Code: 0
URI: http://maps.gstatic.com/intl/pt_ALL/mapfiles/api-3/12/10/main.js

<pre lang="Javascript">
<div id="map" style="width: 400px; height: 650px;"></div>
<!--[if IE]><script type="text/javascript" src="/excanvas.js"></script><![endif]-->
<script src="http://maps.google.com/maps/api/js?sensor=false"type="text/javascript"></script>
<script type="text/javascript"> 
var Parsed = [[]];
var txtFile;
 
//Atributes of Red Circle Icons.
function getCircle(magnitude) {
    "use strict";
    return {
        path: google.maps.SymbolPath.CIRCLE,
        fillColor: 'red',
        fillOpacity: 0.5,
        scale: Math.pow(2, magnitude) / Math.PI,
        strokeColor: 'black',
        strokeWeight: 0.5
    };
}
 
//CSV to Array function. Returns Parsed array.
function CSVToArray(strData, strDelimiter) {
    "use strict";
    strDelimiter = (strDelimiter || ",");
    var objPattern = new RegExp(
            ("(\\" + strDelimiter + "|\\r?\\n|\\r|^)"
             + "(?:\"([^\"]*(?:\"\"[^\"]*)*)\"|"
             + "([^\"\\" + strDelimiter + "\\r\\n]*))"
            ),
            "gi"
        );
    var arrData = [[]];
    var arrMatches = null;
    while (arrMatches = objPattern.exec(strData)) {
        var strMatchedDelimiter = arrMatches[1];
        if (strMatchedDelimiter.length && (strMatchedDelimiter !== strDelimiter)) {
            arrData.push([]);
        }
        if (arrMatches[2]) {
            var strMatchedValue = arrMatches[2].replace(
                new RegExp("\"\"",
                    "g"),
                "\""
            );
        } else {
            var strMatchedValue = arrMatches[3];
        }
        arrData[arrData.length - 1].push(strMatchedValue);
    }
    return arrData;
}

//Initializing connection
if (window.XMLHttpRequest) { // Mozilla, Safari, ...
    txtFile = new XMLHttpRequest(); 
} else if (window.ActiveXObject) { // IE 8 and older
    txtFile = new ActiveXObject("Microsoft.XMLHTTP");
}

//Tries to open file.
txtFile.open("GET", "http://foo/f4/stats/nServsCodigoPostal.csv", true);
txtFile.onreadystatechange = function() {
    "use strict";
    if (txtFile.readyState === 4) {  // Makes sure the document is ready to parse.
        if (txtFile.status === 200) {  // Makes sure it's found the file.
            var allText = txtFile.responseText;
            Parsed = new CSVToArray(allText, ";");
        }
    }

    //Locations apointed
    var locations = [
        ['Viana do Castelo', 41.6872711837914, -8.82476806640625, 0],
        ['Braga', 41.54944320851238, -8.414154052734375, 0],
        ['Porto', 41.15875373498798, -8.610706329345703, 0],
        ['Aveiro', 40.63896734381723, -8.648300170898438, 0],
        ['Vila Real', 41.30050773444147, -7.752227783203125, 0],
        ['Bragança', 41.80535774441799, -6.760368347167969, 0],
        ['Viseu', 40.64730356252251, -7.8936767578125, 0],
        ['Guarda', 40.53258931069557, -7.25921630859375, 0],
        ['Coimbra', 40.20195268954057, -8.433380126953125, 0],
        ['Leiria', 39.7462660621837, -8.81103515625, 0],
        ['Santarém', 39.774769485295465, -8.5693359375, 0],
        ['Castelo Branco', 39.82013946676259, -7.505035400390625, 0],
        ['Portalegre', 39.28860847419942, -7.42950439453125, 0],
        ['Lisboa', 38.72891158257716, -9.139251708984375, 0],
        ['Èvora', 38.56749535882734, -7.9046630859375, 0],
        ['Setúbal', 38.5299046000139, -8.876953125, 0],
        ['Beja', 38.01509916686995, -7.862606048583984, 0],
        ['Faro', 37.017905231730914, -7.922515869140625, 0]
    ];
 
    //Cycle through Parsed data from file and locations vector trying to match
    //Data and populate argument MAgnitude of icon.
    var i, j;
    for (i = 0; i < Parsed.length; i += 1) {
        var a = new String(Parsed[i][0]);
        Parsed[i][0] = a.replace(/[^a-z0-9]/gi, '');
        for (j = 0; j < locations.length; j += 1) {
            var b = new String(locations[j][0]);
            locations[j][0] = b.replace(/[^a-z0-9]/gi, '');
 
            if (Parsed[i][0] === locations[j][0]) {
                locations[j][3] = ((0.07 * Parsed[i][2]) + 4.875);
            }
        }
    }

    //Initializing map properties
    var map = new google.maps.Map(document.getElementById('map'), {
        zoom: 7,
        center: new google.maps.LatLng(39.50, -8.37),
        disableDefaultUI: true,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    });

	
    function addMarker(location) {
        var lat = location[1], lng = location[2],
            magnitude = location[3];
 
        var options = {
            position: new google.maps.LatLng(lat, lng),
            map: map
        };

        if (magnitude < 5) {
            options.animation = google.maps.Animation.BOUNCE;
        } else {
            options.icon = getCircle(magnitude);
        }
 
         var marker = new google.maps.Marker(options);
    }	

	//Adds Marker's
	var i;
    for (i = 0;  i < locations.length;  i += 1) {
        addMarker(locations[i]);
    }
};
txtFile.send(null);
</script>

I can't seem to find the problem with IE8...