สอบถามเกี่ยวกับการใช้ Class ใน JSON หน่อยครับ (Yii Framework)

<script type="text/javascript">
    function tb_parseQuery(query) {
        var Params = {};
        if (!query) { return Params; }// return empty object
        var Pairs = query.split(/[;&]/);
        for (var i = 0; i < Pairs.length; i++) {
            var KeyVal = Pairs[i].split('=');
            if (!KeyVal || KeyVal.length != 2) { continue; }
            var key = unescape(KeyVal[0]);
            var val = unescape(KeyVal[1]);
            val = val.replace(/\+/g, ' ');
            Params[key] = val;
        }
        return Params;
    }
    $(document).ready(function () {
        $('a.uimodal').bind('click', function () {

        var $this = $(this);
        var url = $this.attr("href");

        var queryString = url.replace(/^[^\?]+\??/, '');
        var params = tb_parseQuery(queryString);
        TB_WIDTH = (params['width'] * 1) + 30 || 630; //defaults to 630 if no paramaters were added to URL
        TB_HEIGHT = (params['height'] * 1) + 40 || $(document).height(); //defaults to 440 if no paramaters were added to URL
            TB_Title = (params['title']);

        $('<div>').dialog({
            modal: true,
            open: function () {
                $(this).load(url);
            },
            height: TB_HEIGHT,
            width: TB_WIDTH,
            title: TB_Title
            
        });
        return false;
    });
    });



      
	jQuery(function($) {
                       
                        var result = $('#req_result');
			//result.html('Loading, Please wait..');
			$.ajax({
				url: "<?php echo $this->createUrl('SearchAll')?>",
				dataType: 'json',
				cache: false,
				type: 'post',
                                success: function(data) {
                                    //var data = eval('('+f+')');
                                   
                                    if(data!=""){
					var tmp = '';
					for(var i=0;i<data.length;++i){
						tmp += '<tr class="gradeX">';
						tmp += '<td><a class="uimodal" href="index.php?height=350&width=700&title=11">Open</a></td>';
						tmp += '<td>'+data[i].node_name+'</td>';
						tmp += '<td>'+data[i].start_date+'</td>';
						tmp += '<td>'+data[i].end_date+'</td>';
						tmp += '<td>&nbsp;</td>';
						tmp += '<td>'+data[i].service+'</td>';
						tmp += '<td>'+data[i].prov_subs+'</td>';
						tmp += '<td>'+data[i].conn_subs+'</td>';   
						tmp += '<td>'+data[i].min_line+'</td>';
						tmp += '</tr>';
					}
                                        //console.log(tmp);
                                     }else{
					tmp += '<tr class="gradeX"><td colspan="9" style="color: red;" >Not Found</td></tr>';
                                     }
					result.html(tmp);
				}
			});
                       
	});
</script>