all.js

征服 Web2.0 快速入门(Java) 光盘源码

function createAjaxObj(){
  var httprequest=false
  if (window.XMLHttpRequest)
  { // if Mozilla, Safari etc
    httprequest=new XMLHttpRequest()
    if (httprequest.overrideMimeType)
      httprequest.overrideMimeType('text/xml')
   }
   else if (window.ActiveXObject)
   { // if IE
     try {
       httprequest=new ActiveXObject("Msxml2.XMLHTTP");
     }
     catch (e){
       try{
          httprequest=new ActiveXObject("Microsoft.XMLHTTP");
       }
       catch (e){}
     }
   }
   return httprequest
}
var ajaxObject;
var name=[];
var src=[];
var description=[];
function getPictures( category )
{
  ajaxObject = createAjaxObj();
  ajaxObject.onreadystatechange=function()
  {
     changStateFunction( category );
  }
  var submitURL="picture?cate="+category;
  ajaxObject.open('GET', submitURL, true);
  ajaxObject.send(null);
  var elmt = document.getElementById(category);
  elmt.innerHTML="Loading";
}
function changStateFunction( category)
{
  if (ajaxObject.readyState == 4)
  { 
    if (ajaxObject.status==200)
      parasData( category ); 
  }
}
function parasData( category )
{
   var xmlData = ajaxObject.responseXML;
   var pictures = xmlData.getElementsByTagName("item");
   for (var i=0;i<pictures.length;i++)
   {
     name[i]= pictures[i].getElementsByTagName("name")[0].firstChild.nodeValue;
     src[i]= pictures[i].getElementsByTagName("url")[0].firstChild.nodeValue;
     description[i]= pictures[i].getElementsByTagName("description")[0].firstChild.nodeValue;
   }
   var result="";
   for (var i=0;i<name.length;i++)
   {
     result +='<a href=""><img src="images/'+src[i]+'" alt="'+description[i]+'">'+name[i]+'</a>';
   }
   var elmt = document.getElementById(category);
   elmt.innerHTML=result;
}
function switchStyle( file1 ,file2){
  var cssfile = document.getElementsByTagName("link")[0];
  if (cssfile.getAttribute("href")==file1)
     cssfile.setAttribute("href",file2);
  else 
     cssfile.setAttribute("href",file1);
}