document.createElement('A') relatively good attributes_javascript skills

After working on it for a day, I finally got the attributes in A
Code 1:

[Ctrl A Select all Note: If you need to introduce external Js, you need to refresh to execute

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Code 2:

<title> </title> New Document <span id="oData"> </span>
[Ctrl A select all Note:

If you need to introduce external Js, you need to refresh to execute ]<script> function newelement(){ var a=document.createElement("a"); a.href="javascript:alert('A link.')"; a.innerHTML="aaa"; var img=new Image(); img.src="http://img.baidu.com/img/post-jg.gif"; img.style.border="none"; a.appendChild(img) document.getElementById("oData").appendChild(a); img.onmouseover=function(){ this.src="http://www.baidu.com/img/sslm1_logo.gif"; } img.onmouseout=function(){ this.src="http://img.baidu.com/img/post-jg.gif"; } } </script>