jquery的上传控件uploadly,每行都有一个这样的控件对id选择器的使用

function f2(id) {
//上传图片
$('[id^=newupload' + id + ']').uploadify({
'uploader': '../../dwz/uploadify/scripts/uploadify.swf',
'script': 'http://image.uiyi.cn/UploadServer/UploadEditNameFile2',
'cancelImg': 'cancel.png',
'auto': false,
'multi': false,
'fileDesc': 'Image Files',
'fileExt': '*.jpg;*.png;*.gif;*.bmp;*.jpeg',
'queueSizeLimit': 90,
'sizeLimit': 4000000,
'buttonText': 'Choose',
'folder': 'singleproduct',
'onComplete': function (event, queueID, fileObj, response, data) {
var j = $.parseJSON(response);
if (j.Status == 1) {
alert('成功');
var s = j.FileName.split(',')[1];
var str = s.substr(9, s.length - 9);
$("#hidimg" + str).val(j.FileName.split(',')[0]);

}
},
'onError': function (event, queueID, fileObj) {
alert("文件:" + fileObj.name + " 上传失败");
},
'onAllComplete': function (event, queueID, fileObj, response, data) {

}
});
}

</script>