一些页面自动跳转的实现

功能：5秒后，自动跳转到同目录下的02view.html文件

1）html的实现

< head >
 < meta  http-equiv ="refresh"  content ="5;url=02view.html" >
 </ head >

优点：简单

缺点：Struts Tiles中无法使用

2）javascript的实现

< script  language ="javascript"  type ="text/javascript" >
   setTimeout("javascript:location.href='02view.html'", 5000); 
</ script >

优点：灵活，可以结合更多的其他功能

缺点：受到不同浏览器的影响

3）结合了倒数的javascript实现（IE）

< span  id ="totalSecond" > 5 </ span >

< script  language ="javascript"  type ="text/javascript" >
var  second  =  totalSecond.innerText;
setInterval( " redirect() " ,  1000 );
function  redirect(){ 
totalSecond.innerText =-- second; 
if (second < 0 ) location.href = '02view.html';
}
</ script >

优点：更人性化

缺点：firefox不支持（firefox不支持span、div等的innerText属性）

3'）结合了倒数的javascript实现（firefox）

< script  language ="javascript"  type ="text/javascript" >
     var  second  =  document.getElementById('totalSecond').textContent;
    setInterval( " redirect() " ,  1000 );
     function  redirect()
    {
        document.getElementById('totalSecond').textContent  =   -- second;
         if  (second  <   0 ) location.href  =  '02view.html';
    }
</ script >

4）解决Firefox不支持innerText的问题

< span  id ="totalSecond" > 5 </ span >

< script  language ="javascript"  type ="text/javascript" >
if (navigator.appName.indexOf( " Explorer " )  >   - 1 ){
    document.getElementById('totalSecond').innerText  =   " my text innerText " ;
}  else {
    document.getElementById('totalSecond').textContent  =   " my text textContent " ;
}
</ script >

5）整合3）和3'）
< span  id ="totalSecond" > 5 </ span >

< script  language ="javascript"  type ="text/javascript" >
     var  second  =  document.getElementById('totalSecond').textContent;

     if  (navigator.appName.indexOf( " Explorer " )  >   - 1 )
    {
        second  =  document.getElementById('totalSecond').innerText;
    }  else
    {
        second  =  document.getElementById('totalSecond').textContent;
    }


    setInterval( " redirect() " ,  1000 );
     function  redirect()
    {
         if  (second  <   0 )
        {
            location.href  =  '02view.html';
        }  else
        {
             if  (navigator.appName.indexOf( " Explorer " )  >   - 1 )
            {
                document.getElementById('totalSecond').innerText  =  second -- ;
            }  else
            {
                document.getElementById('totalSecond').textContent  =  second -- ;
            }
        }
    }
</ script >