菜单实现的主要技术为Javascript, DOM, XML 不会被任何标签覆盖,一般的菜单会被SELECT,OBJECT等标签覆盖。 可以跨过框架,譬如一个frameset中有两个frame,上一个frame放菜单,下一个frame放具体内容,那么菜单可以悬浮于下一个frame之上。 在添加菜单数据时,通过指定父子菜单的ID来达到动态菜单的目的。 可使用XML存储菜单数据,一般用作静态菜单。 使用window.createPopup显示菜单,所以只能在IE中使用。
标签: Javascript DOM XML 菜单
上传时间: 2014-01-09
上传用户:wkchong
The Inter IC bus or I2C bus is a simple bidirectional two wire bus designed primarily for general control and data transfer communication between ICs. Some of the features of the I2C bus are: • Two signal lines, a serial data line (SDA) and a serial clock line (SCL), and ground are required. A 12V supply line (500mA max.) for powering the peripherals often may be present. • Each device connected to the bus is software addressable by a unique address and simple master/ slave relationships exist at all times masters can operate as master-transmitters or as master-receivers. • The I2C bus is a true multi-master bus including collision detection and arbitration to prevent data corruption if two or more masters simultaneously initiate data transfer systems. • Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 KBit/s in the standard mode or up to 400 KBit/s in the fast mode.
标签: bus bidirectional primarily designed
上传时间: 2013-12-11
上传用户:jeffery
最受欢迎的Joomla社区用户管理收费插件 - Commnity Builder 1.2 RC2。 Community Builder suite (CB) extends the Joomla! user management system. Key features: extra fields in profile, enhanced registration workflows, user lists, connection paths between users, admin defined tabs and user profiles, image upload, front-end workflow management, integration with other components, like PMS, Newsletter, Forum, Galleries. Release 1.1 is compatible with all Joomla! 1.0.x (including 1.0.15) and Mambo 4.5.2-4.6.4. New CB version 1.2 RC brings Joomla 1.5 native compatibility (and keeping Joomla 1.0.x and Mambo 4.5.2-4.6.4 native compatibility), multi-criteria user searches, full field controls of core fields, ajax email and username checkers, new lost username/password form and many more features and fixes. Please see announcement on our homepage.
标签: Builder Joomla Community Commnity
上传时间: 2016-10-20
上传用户:daoxiang126
最受欢迎的Joomla 社区用户管理收费插件 Community Builder 1.2 RC2 的电子书,仅提供给付费会员 Community Builder suite (CB) extends the Joomla! user management system. Key features: extra fields in profile, enhanced registration workflows, user lists, connection paths between users, admin defined tabs and user profiles, image upload, front-end workflow management, integration with other components, like PMS, Newsletter, Forum, Galleries. Release 1.1 is compatible with all Joomla! 1.0.x (including 1.0.15) and Mambo 4.5.2-4.6.4. New CB version 1.2 RC brings Joomla 1.5 native compatibility (and keeping Joomla 1.0.x and Mambo 4.5.2-4.6.4 native compatibility), multi-criteria user searches, full field controls of core fields, ajax email and username checkers, new lost username/password form and many more features and fixes. Please see announcement on our homepage.
标签: Community Builder Joomla 1.2
上传时间: 2016-10-20
上传用户:王者A
Communication software and platform develop sketch map and content and wrap up and step the computer network, such multi-platform information, in order to offer its explanation relying mainly on stepping the platform of reference mainly as railway application,etc
标签: and Communication software platform
上传时间: 2016-10-28
上传用户:cooran
A Module-based Wireless Node (MW-Node) is a Node with wireless and mobile capabilities added by means of modules. It is not a new node object derived from Node. Rather it is a new layout of mostly existing components. Rationale for this new design has been presented in [1]. The MW-Node provides a flexible support for wireless and mobile networking and in particular: support for multiple interfaces/multiple channels, and a common basis for the implementation of wireless routing protocols.
标签: Node Module-based capabilities Wireless
上传时间: 2013-12-26
上传用户:大三三
Thinking in Java, 3rd ed. Revision 4.0 Preface Introduction 1: Introduction to Objects 2: Everything is an Object 3: Controlling Program Flow 4: Initialization & Cleanup 5: Hiding the Implementation 6: Reusing Classes 7: Polymorphism 8: Interfaces & Inner Classes 9: Error Handling with Exceptions 10: Detecting Types 11: Collections of Objects 12: The Java I/O System 13: Concurrency 14: Creating Windows & Applets 15: Discovering Problems 16: Analysis and Design A: Passing & Returning Objects B: Java Programming Guidelines C: Supplements D: Resources Index
标签: Introduction Thinking Revision Preface
上传时间: 2014-07-13
上传用户:netwolf
Whenever there is an application to write, breaking it up to small pieces is a great idea. The smallest piece of any application would probably be a data object, or a simple Bean in Java. Java Beans are simple Java classes that have a distinctive look and behavior. Their simplest purpose is to contain data and they accomplish this by having properties. Each property is actually a data-member containing/referencing the actual data and a couple of methods, a getter method and a setter method. Thus, the simplest data-bean describing a person could be expressed as such:
标签: small application Whenever breaking
上传时间: 2016-11-07
上传用户:lingzhichao
详细的OFDM设计过程,包括Matlab仿真、DSP源码及文档说明。 OFDM(正交频分复用)技术实际上是MCM(Multi-Carrier Modulation,多载波调制)的一种。
上传时间: 2013-12-25
上传用户:dianxin61
-- Simple Robot Control Program -------------------------------------------------------------------------- -- Left is left IR sensor - 1=object to left -- Right is rigth IR sensor - 1=object to right -- Lmotor_dir 1=forward 0=reverse -- Rmotor_dir 1=forward 0=reverse -- Lmotor_speed 111=fast 000=slow -- Rmotor_speed 111=fast 000=slow
标签: Control Program Simple Robot
上传时间: 2013-11-27
上传用户:风之骄子