如何知道我的网页多少时间加载完毕?
如何知道我的网页多少时间加载完毕?然后显示出时间的差值
------解决方案--------------------参考一下 
 —————————— 
  <!DOCTYPE HTML PUBLIC  "-//W3C//DTD HTML 4.0 Transitional//EN ">  
  <HTML>  
   <HEAD>  
    <TITLE>  New Document  </TITLE>  
    <META NAME= "Generator " CONTENT= "EditPlus ">  
   </HEAD>    
   <BODY>  
    <script language=javascript>     
 tim=1    
 setInterval( "tim++ ",100)    
 b=1      
 var autourl=new Array()    
 autourl[1]= "www.njcatv.net "    
 autourl[2]= "javacool.3322.net "    
 autourl[3]= "www.sina.com.cn "    
 autourl[4]= "www.nuaa.edu.cn "    
 autourl[5]= "www.cctv.com "      
 function butt(){    
 document.write( " <form name=autof>  ")    
 for(var i=1;i <autourl.length;i++)    
 document.write( " <input type=text name=txt "+i+ " size=10 value=测试中……>  =》 <input type=text name=url "+i+ " size=40>  =》 <input type=button value=GO onclick=window.open(this.form.url "+i+ ".value)>  <br/>  ")    
 document.write( " <input type=submit value=刷新>  </form>  ")    
 }    
 butt()    
 function auto(url){    
 document.forms[0][ "url "+b].value=url    
 if(tim> 200)    
 {document.forms[0][ "txt "+b].value= "链接超时 "}    
 else    
 {document.forms[0][ "txt "+b].value= "时间 "+tim/10+ "秒 "}    
 b++    
 }    
 function run(){for(var i=1;i <autourl.length;i++)document.write( " <img src=http:// "+autourl[i]+ "/ "+Math.random()+ " width=1 height=1 onerror=auto( 'http:// "+autourl[i]+ " ')>  ")}    
 run() </script>   
   </BODY>  
  </HTML>  
------解决方案--------------------这里有 
 http://community.csdn.net/Expert/topic/5548/5548809.xml?temp=.327572