SP.UI.ModalDialog.showModalDialog not working with IE7

Question

I'm trying to make this link below work with IE7 but it doesn't fire. Whereas is ok in IE9 and firefox. Any ideas what i'm doing wrong :( THanks

   <a href="#" onclick="openDialog('/Comms.aspx?sc={@ID}'); return true "><xsl:value-of select="@Title"/></a>

<script type="text/javascript">
function openDialog(FormPath) {
    var options = {
        url: FormPath,
        width: 950,
        height: 800,
        title: "Communications",
        allowMaximize:'true',
    };
    SP.UI.ModalDialog.showModalDialog(options);
}
</script>

Answer 1

Remove comma right after allowMaximize:'true', :)
When writing javascript always track script errors that might appear. In IE they displays in left bottom corner, you can click it to see details and also can check "Always show this message for webpage errors" and this popup will show every time when javascript errors appear.