[jQuery] autocomplete question

[jQuery] autocomplete question


I am looking at the auto-complete demo page, (
http://view.jquery.com/trunk/plugins/autocomplete/demo/ ) on the demo
of remote images.
the Javascript for that is
$("#imageSearch").autocomplete("images.php", {
        width: 320,
        max: 4,
        highlight: false,
        scroll: true,
        scrollHeight: 300,
        formatItem: function(data, i, n, value) {
            return "<img src='images/" + value + "'/> " + value.split(".")[0];
        },
        formatResult: function(data, value) {
            return value.split(".")[0];
        }
    });
my problem is that when I try to implement this. it will only search
for the data that is first in the string. so if I have a "<span>" +
data.N "</span> I have to type in <span> to see any results, how to I
configure this to just match the data.N ?
function getEmpSuccess(data){
    eval("empColl = " + data + ";");
    $("input[id$='query']").autocomplete(empColl["E"], {
                    formatItem: function(data) {
                        var rts = data.N;
                        rts +='<div class="color' + data.W + '">&nbsp;</div><br />';
                        rts += "<sub>" + data.S + "</sub>";
                        return rts;
                    },
                    formatResult: function(item, value) {
                        return item.N;
                    },
                    selectFirst: false,
                    max: 5
                });
}