html运行实例（xmle_app_navigate）-搜寻教程库

代码示例：（标识：xmle_app_navigate）
<html>
<head>

<script type="text/javascript">
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.open("GET","/static/demo/xml/cd_catalog.xml",false);
xmlhttp.send();
xmlDoc=xmlhttp.responseXML; 

x=xmlDoc.getElementsByTagName("CD");
i=0;

function displayCD()
{
artist=(x[i].getElementsByTagName("ARTIST")[0].childNodes[0].nodeValue);
title=(x[i].getElementsByTagName("TITLE")[0].childNodes[0].nodeValue);
year=(x[i].getElementsByTagName("YEAR")[0].childNodes[0].nodeValue);
txt="Artist: " + artist + "<br />Title: " + title + "<br />Year: "+ year;
document.getElementById("showCD").innerHTML=txt;
}

function next()
{
if (i<x.length-1)
  {
  i++;
  displayCD();
  }
}

function previous()
{
if (i>0)
  {
  i--;
  displayCD();
  }
}
</script>
</head>
<body onload="displayCD()">

<div id='showCD'></div><br />
<input type="button" onclick="previous()" value="<<" />
<input type="button" onclick="next()" value=">>" />

</body>
</html>