jQuery之浮动窗口

最近忙于研究JQuery：

今天公司要求实现浮动窗口效果，自己看了不少资料终于实现此效果。

用jQ实现浮动窗口功能,弹出窗口时背景变暗.

预览:

Html代码

 

代码

   
     

    
      
    
      <
    
      html
    
      >
    
       

    
      <
    
      head
    
      >
    
       
 
    
      <
    
      title
    
      >
    
      浮动窗口
    
      </
    
      title
    
      >
    
       
 
    
      <
    
      link 
    
      type
    
      ="text/css"
    
       rel
    
      ="stylesheet"
    
       href
    
      ="css/overflow.css"
    
       
    
      />
    
       
 
    
      <
    
      script 
    
      type
    
      ="text/javascript"
    
       src
    
      ="js/jquery.js"
    
      ></
    
      script
    
      >
    
       
 
    
      <
    
      script 
    
      type
    
      ="text/javascript"
    
       src
    
      ="js/overflow.js"
    
      ></
    
      script
    
      >
    
       
 
    
      <
    
      script 
    
      type
    
      ="text/javascript"
    
      >
    
       
 $(document).ready(
    
      function
    
      (){ 
 
    
      var
    
       b 
    
      =
    
       $(
    
      "
    
      #b
    
      "
    
      ); 
 
    
      var
    
       overFlow 
    
      =
    
       $(
    
      "
    
      #over
    
      "
    
      ); 
 b.click(
    
      function
    
      (){ 
 overFlow.fadeIn(); 
 $(
    
      "
    
      #mask
    
      "
    
      ).css(
    
      "
    
      background
    
      "
    
      ,
    
      "
    
      #111
    
      "
    
      ); 
 $(
    
      "
    
      #mask
    
      "
    
      ).css(
    
      "
    
      opacity
    
      "
    
      ,
    
      "
    
      0.8
    
      "
    
      ); 
 }) 
 $(
    
      "
    
      #close
    
      "
    
      ).click(
    
      function
    
      (){ 
 overFlow.fadeOut(); 
 $(
    
      "
    
      #mask
    
      "
    
      ).css(
    
      "
    
      background
    
      "
    
      ,
    
      "
    
      #fff
    
      "
    
      ); 
 $(
    
      "
    
      #mask
    
      "
    
      ).css(
    
      "
    
      opacity
    
      "
    
      ,
    
      "
    
      1
    
      "
    
      ); 
 }); 
 drag($(
    
      "
    
      #over
    
      "
    
      ),$(
    
      "
    
      #title
    
      "
    
      )); 
 }) ; 
 
 
 
    
      </
    
      script
    
      >
    
       

    
      </
    
      head
    
      >
    
       

    
      <
    
      body
    
      >
    
       
 
 
 
    
      <
    
      div 
    
      id
    
      ="over"
    
      >
    
       
 
    
      <
    
      div 
    
      id
    
      ="title"
    
      ><
    
      span 
    
      id
    
      ="t"
    
      >
    
      这只是一个演示标题
    
      </
    
      span
    
      ><
    
      span 
    
      id
    
      ="close"
    
      >
    
      [ x ]
    
      </
    
      span
    
      ></
    
      div
    
      >
    
       
 
 
    
      <
    
      div 
    
      id
    
      ="content"
    
      >
    
       
 When a container object, such as a div, has mouse capture, events originating on objects within that container are fired by the div, unless the bContainerCapture parameter of the setCapture method is set to false. Passing the value false causes the container to no longer capture all document events. Instead, objects within that container still fire events, and those events also bubble as expected.
    
      <
    
      br
    
      />
    
       
 ---This is edited by Alp. 
 
    
      </
    
      div
    
      >
    
       
 
    
      </
    
      div
    
      >
    
       
 
    
      <
    
      div 
    
      id
    
      ="mask"
    
      >
    
       
    
      <
    
      a 
    
      id
    
      ="b"
    
       href
    
      ="#"
    
      >
    
      click
    
      </
    
      a
    
      ></
    
      div
    
      >
    
       
 

    
      </
    
      body
    
      >
    
       

    
      </
    
      html
    
      >
    
       
   
     

 

Js代码

 

代码

   
     

    
      
    
      function drag(overFlow,title){ 
 title.onmousedown = function(evt){ 
 var doc = document; 
 var evt = evt || window.event; 
 var x = evt.offsetX?evt.offsetX:evt.layerX; 
 var y = evt.offsetY?evt.offsetY:evt.layerY; 
 if(overFlow.setCapture){ 
 overFlow.setCapture(); 
 }else if(window.captureEvents){ 
 window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP); 
 } 
 
 doc.onmousemove = function(evt){ 
 evt = evt || window.event; 
 var xPosition = evt.pageX || evt.clientX; 
 var yPosition = evt.pageY || evt.clientY; 
 var newX = xPosition - x; 
 var newY = yPosition - y; 
 overFlow.style.left = newX; 
 overFlow.style.top = newY; 
 }; 
 
 doc.onmouseup = function(){ 
 if(overFlow.releaseCapture){ 
 overFlow.releaseCapture(); 
 }else if(window.captureEvents){ 
 window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP); 
 } 
 doc.onmousemove=null; 
 doc.onmouseup=null; 
 }; 
 }; 
 } 
 
 

   
     

 

css代码

 

 

代码

   
     

    
      
    
      
#over{ 
 position: absolute; 
 left: 300px; 
 top: 200px; 
 border: 1px solid black; 
 display: none; 
 background: #cccccc; 
 cursor: default; 
 width: 300px; 
 z-index: 10; 
 opacity: 1; 
} 
 
#title{ 
 border: 1px solid #1840C4; 
 background: #95B4DC; 
 padding: 2px; 
 font-size:12px; 
 cursor: default; 
} 
 
#close{ 
 cursor: pointer; 
 margin-right: 1px; 
 overflow: hidden; 
} 
 
#content{ 
 border: 1px solid #C2D560; 
 background: #EFF4D7; 
} 
 
#t{ 
 margin-right:145px; 
} 
 
#mask{ 
 z-index: 1; 
 background: #fff; 
 width: 1024px; 
 height: 800px; 
} 
 
#b{ 
 position: absolute; 
 left: 200px; 
 top: 100px; 
} 
 
body{ 
 padding: 0px; 
 margin: 0px; 
} 
 
#over{ 
 background: transparent; 
}