JS 获取FileUpload1控件地址

function openList() {
            //判断浏览器类型
            var isIE = (document.all) ? true : false;
            );
            );
            );

            var path = "";

            var file = document.getElementById("FileUpload1");
            if (isIE7 || isIE8) {
                file.select();
                //获取欲上传的文件路径
                path = document.selection.createRange().text;
                document.selection.empty();
            }
            var filepath = document.getElementById("FileUpload1").value;
            if (isIE6) { path = filepath; }
}