<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>无标题文档</title><link rel="stylesheet" media="screen" href="explanation.css"></head><body><h1>What is the Document Object Model</h1><p>The<abbr title="World Wide Web Consortium" > W3C</abbr> defines the <abbr title="Document Object Model" >DOM </abbr> as:</p><blockquote cite="http://www.w3.org/DOM"><p>a platform-and language-netuaral interface that will allow programs and scripts.</p></blockquote><p>It is an<abbr title="Application Program Interface" > API </abbr>that can be used to nagitve <abbr title="HeyperText Markup Language" >HTML</abbr>and<abbr title="eXtensible Markup Language"> XML</abbr>documentts.</p><script > function displayAbbreviations(){ if(!document.getElementsByTagName)return false; if(!document.createElement) return false; if(!document.createTextNode) return false; var abbreviations=document.getElementsByTagName("abbr"); if(abbreviations.length<1) return false; var defs=new Array(); for(i=0;i<abbreviations.length;i++){ var current_abbr=abbreviations[i]; if(current_abbr.childNodes.length<1) continue; var definition=current_abbr.getAttribute("title"); var key=current_abbr.lastChild.nodeValue; defs[key]=definition; } var dlist=document.createElement("dl"); for(key in defs){ var definition=defs[key]; var dtitle=document.createElement("dt"); var dtitle_txt=document.createTextNode(key); dtitle.appendChild(dtitle_txt); var ddesc=document.createElement("dd"); var ddesc_txt=document.createTextNode(definition); ddesc.appendChild(ddesc_txt); dlist.appengChild(dtitle); dlist.appendChild(ddesc); } if(dlist.childNodes.length<1)return false; var header=document.createElement("h2"); var header_txt=document.createTextNode("Abbreviations"); header.appendChild(header_txt); document.body.appendChild(header); document.body.appendChild(dlist); } function displayCitations(){ if(!document.getElementsByTagName) return false; if(!document.createElement) return false; if(!document.createTextNode) return false; var qo=document.getElementsByTagName("blockquote"); for(i=0;i<qo.length;i++){ if(!qo[i].getAttribute("cite")) continue; var url=qo[i].getAttribute("cite"); var qoElements=qo[i].getElementsByTagName("*"); if(qoElements.length<1) continue; var ele=qoElements[qoElements.length-1]; var lik=document.createElement("a"); var lik_txt=document.createTextNode("source"); lik.appendChild(lik_txt); lik.setAttribute("href",url); var supscript=document.createElement("sup"); supscript.appendChild(lik); ele.appendChild(supscript); } } function addLoadEvent(func){ var onload=window.onload; if(typeof (window.onload) !='function'){ window.onload=func; }else{ window.onload=function(){ onload(); func(); } } }// JavaScript Document addLoadEvent(displayAbbreviations); addLoadEvent(displayCitations) // JavaScript Document</script></body></html>求各路大神指点一二！！！！
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