SharePoint jquery group

Hello All,

The platform is SharePoint 2007.

I am trying to use jquery to link a column based on the group the user is in.  If the user in the "ACC" group, I want to link the title column and if they are not, i don't want it linked.

The code below works, sort of.  If my function(GetGroupOfUser()) returns true, it links the column but if it's false, I get the following runtime error" 'boolVal' is undefined.

<script type="text/javascript" language="javascript" src="http://moss2007vm:10712/sdimetrics/js%20Assets/SDIfunctions.js"></script>
<script type="text/javascript" language="javascript" src="http://moss2007vm:10712/js/jquery-1.8.2.min.js"></script>
<script type="text/javascript" language="javascript" src="http://moss2007vm:10712/js/jquery.SPServices-0.7.2.min.js"></script>


<script type="text/javascript" language="javascript">
$(document).ready(function() {
//var getBoolVal= GetGroupOfUser();
var liHtml = "<table width=100% border=1><th><td>Title</td><td>ID</td></th>";

var isTrue = [b]GetGroupOfUser()[/b];
if(isTrue)
{
alert("True");
}
else
{
alert("False");
}
  $().SPServices({
    operation: "GetListItems",
    async: false,
    listName: "SDIMetrics",
    CAMLViewFields: "<ViewFields><FieldRef Name='Title' /><FieldRef Name='MAJCOM' /><FieldRef Name='ID' /></ViewFields>",
    completefunc: function (xData, Status) {
          $(xData.responseXML).SPFilterNode("z:row").each(function() {
if(isTrue) {
alert("Provide a link");
    liHtml += "<tr><td><a href='www.google.com'>"+$(this).attr("ows_Title") +"</a></td><td>"+$(this).attr("ows_ID") +"</td></tr>";
       }
else {
alert("no link needed");
    liHtml += "<tr><td>"+$(this).attr("ows_Title") +"</td><td>"+$(this).attr("ows_ID") +"</td></tr>";
}

//alert(liHtml);
      });
liHtml += "</table>";
$("#tasksUL").append(liHtml);
    }
  });
  
});
</script>
<label id="tasksUL" />

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SDIfunctions.js

function GetGroupOfUser(){   
var boolval = false;
var curUser = $().SPServices.SPGetCurrentUser();
alert(curUser);
$().SPServices({
      operation: "GetGroupCollectionFromUser",
      userLoginName: $().SPServices.SPGetCurrentUser(),
      async: false,
      completefunc: function(xData, Status) {   
        if($(xData.responseXML).find("Group[Name='ACC']").length == 1) {
alert("Hello.  I am in this group.");
		  boolVal = true;
        }              

      }

   }); /*close().SPServices */ 
return boolVal; 
}

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Any help would be much appreciated.  Thanks!