新建话题回车事件

app/views/memos/_form.html.erb

@@ -85,6 +85,28 @@
             $("#memo-form").submit();
         }
     }
+    document.onkeydown = function(event) {
+        var target, code, tag;
+        if (!event) {
+            event = window.event; //针对ie浏览器
+            target = event.srcElement;
+            code = event.keyCode;
+            if (code == 13) {
+                tag = target.tagName;
+                if (tag == "INPUT") { return true; }
+                else { return false; }
+            }
+        }
+        else {
+            target = event.target; //针对遵循w3c标准的浏览器，如Firefox
+            code = event.keyCode;
+            if (code == 13) {
+                tag = target.tagName;
+                if (tag == "INPUT") { return false; }
+                else { return true; }
+            }
+        }
+    };
 </script>
 
 
@@ -210,5 +232,7 @@
           $("#memo_classify_tips").attr('style','color: #F00;');
       }
   }
+
+
 </script>
 <% end %>