diff --git a/CitySunlight/Admin.aspx.cs b/CitySunlight/Admin.aspx.cs
index 6cd2308..e9b943f 100644
--- a/CitySunlight/Admin.aspx.cs
+++ b/CitySunlight/Admin.aspx.cs
@@ -51,7 +51,7 @@ namespace CitySunlight
                 String classname = ProductClassManager.getClassName(int.Parse(ProductManager.GetProductInfo(item, ProductManager.Info.Class)));
                 String delete = "<a href=\"/Product/ProductEdit.aspx?id=" + id + "&type=delete\" >删除</a>";
                 html += "<tr>";
-                html += HttpUtils.addTd("");
+                html += HttpUtils.addTd();
                 html += HttpUtils.addTd(ProductManager.NameToUrl(id, name));
                 html += HttpUtils.addTd(picurl);
                 html += HttpUtils.addTd(price);
diff --git a/CitySunlight/HttpUtils.cs b/CitySunlight/HttpUtils.cs
index 7c6a327..69ee69b 100644
--- a/CitySunlight/HttpUtils.cs
+++ b/CitySunlight/HttpUtils.cs
@@ -10,7 +10,7 @@ namespace CitySunlight
         public static String getElementsbyName(String tagName)
         {
             if (HttpContext.Current.Request.Form[tagName] != null)
-                return HttpContext.Current.Request.Form[tagName].ToString().Trim();
+                return HttpContext.Current.Request.Form[tagName].ToString().Trim().Replace("'", "");
             else
                 return null;
         }
@@ -21,7 +21,6 @@ namespace CitySunlight
             else
                 return null;
         }
-
         public static HttpPostedFile getFilebyName(String tagName)
         {
             HttpPostedFile file = HttpContext.Current.Request.Files[tagName];
diff --git a/CitySunlight/Main.aspx.cs b/CitySunlight/Main.aspx.cs
index 584b571..9e0cce2 100644
--- a/CitySunlight/Main.aspx.cs
+++ b/CitySunlight/Main.aspx.cs
@@ -28,14 +28,14 @@ namespace CitySunlight
                 return "<tr><td style=\"color:red\" colspan=\"8\" align=\"center\">数据库中未找到产品</td></tr>";
             else
                 html += String.Format("<tr>{0}</tr>",
-                    HttpUtils.addTd("") +
+                    HttpUtils.addTd() +
                     HttpUtils.addTd("商品名称") +
                     HttpUtils.addTd("商品图片") +
                     HttpUtils.addTd("商品价格") +
                     HttpUtils.addTd("商品数量") +
                     HttpUtils.addTd("商品分类") +
                     HttpUtils.addTd("所属卖家") +
-                    HttpUtils.addTd(""));
+                    HttpUtils.addTd());
 
             foreach (DataRow item in items.Rows)
             {
diff --git a/CitySunlight/Product/ProductEdit.aspx.cs b/CitySunlight/Product/ProductEdit.aspx.cs
index 019aada..cbd77a6 100644
--- a/CitySunlight/Product/ProductEdit.aspx.cs
+++ b/CitySunlight/Product/ProductEdit.aspx.cs
@@ -84,7 +84,11 @@ namespace CitySunlight.Product
                 amount = ProductManager.GetProductInfo(id, ProductManager.Info.Amount);
                 classid = ProductManager.GetProductInfo(id, ProductManager.Info.Class);
                 if (username != ProductManager.GetProductInfo(id, ProductManager.Info.UserName))
-                    return "<h1>你没有修改此商品的权限!</h1>";
+                {
+                    this.submit.Visible = false;
+                    return "<h1 align=\"center\" style=\"color: red\">你没有修改此商品的权限!</h1>";
+                }
+
 
             }
             String html = "";