fix bug

apps/course/Tpl/default/Video/view_w3g.html

@@ -232,7 +232,7 @@
 						return false
 						return false
 					} else {
 					} else {
 						//child.is_free != 1 ||
 						//child.is_free != 1 ||
-						return this.isFree();
+						return this.price == 0;
 					}
 					}
 				}
 				}
 			},
 			},