function window_onload(){

  showAd();

}


function showAd(){

  try{

    var objAd = document.all("articleAd");
  
    objAd.style.display = "none";
    objAd.style.marginTop = "24px";
    objAd.style.marginLeft = "12px";
    objAd.style.marginBottom = "12px";
    objAd.style.styleFloat = "right";
    objAd.style.width = "200px";
  
    var ad='<a href="http://auction1.taobao.com/auction/0/item_detail-0db1-34f6ab9083ac7b23d3ee3b069c1ffbc0.jhtml"><img src="/voanews/specialenglish/images/ad_special_english_dvd.gif" width="200px" alt="VOA Special English DVD 2001-2006 Collection" style="border:solid 1px #600020"/></a>'
    objAd.innerHTML = ad;
  
    objAd.style.display = "block";

  }catch(e){
  
  }

}


function showChineseDateOfArticle(){
  try{
    var objArticle = document.all("formArticle");
    var objArticleDateIssued = new Date(objArticle.aDateIssued.value);
    var strArticleDateIssued =  objArticleDateIssued.getFullYear()+"年"+(objArticleDateIssued.getMonth()+1)+"月"+objArticleDateIssued.getDate()+"日";
    var objArticleDateModified = new Date(objArticle.aDateModified.value);
    var strArticleDateModified =  objArticleDateModified.getFullYear()+"年"+(objArticleDateModified.getMonth()+1)+"月"+objArticleDateModified.getDate()+"日";
    document.all("dateIssued").innerText = strArticleDateIssued; 
    document.all("dateModified").innerText = strArticleDateModified;
  }catch(e){
    alert(e.description)
  }
}


function setFields(){
  formArticle.aTitle.value = document.all("articleTitle").innerHTML;
  formArticle.aAuthors.value = document.all("articleAuthors").innerHTML;
  formArticle.aText.value = document.all("articleText").innerHTML;
}



function printText(){

  try{
    setFields();
    formArticle.target = "_blank";
    formArticle.action = formArticle.aPrinter.value;
    formArticle.submit();
  }
  catch(e){
  }

}


function writeComment(){
  try{
    setFields();
    formArticle.target = "_blank";
    formArticle.action = formArticle.aCommentator.value;
    formArticle.submit();    
  }catch(e){
  
  }
}


function sendMail(){

  try{

    window.open("mailto:?subject="+encodeURI(document.all("articleTitle").innerText)+"&amp;body="+window.location.href,"");

  }catch(e){

  }

}



function reportError(){
  try{
    window.open("/forum/forums/f1/","_blank");
  }catch(e){
  }

}



function addFavorite(){

  // 从外部嵌入的javascript代码没有执行添加至收藏夹的权限 

  try{
    var objArticle = document.all("formArticle");
    var strTitle = objArticle.aTitle.value;
    var strURL = objArticle.aURL.value;
    strURL = strURL.replace(/index\.\w+$/ig,"");
    window.external.Addfavorite(strURL,strTitle); 

  }catch(e){
    alert(e.description) 
  }
}

function lookupDictionary(){
  try{
    formDictionary.target="_blank";
    formDictionary.word.value = document.selection.createRange().text;
    formDictionary.word.value = formDictionary.word.value.replace(/(^\s+)|(\s+$)/ig,"");
    if(formDictionary.word.value.length>0){
      formDictionary.submit();
    }
  }catch(e){
  }
}