案例：XML案例     状态：不可编辑再运行    进入竖版
 运行结果　
​x
 
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<html>
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<head>
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<script type="text/javascript">
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​
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xmlHttp=null;
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​
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function showHint(str)
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{
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if (str.length==0)
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  {
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  document.getElementById("txtHint").innerHTML="";
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  return;
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  }
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try
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  {// Firefox, Opera 8.0+, Safari, IE7
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  xmlHttp=new XMLHttpRequest();
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  }
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catch(e)
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  {// Old IE
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  try
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    {
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    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
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    }
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  catch(e)
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    {
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    alert ("Your browser does not support XMLHTTP!");
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    return;
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    }
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  }
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url="/example/aspnet/gethint.aspx?q=" + str;
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url=url+"&sid="+Math.random();
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xmlHttp.open("GET",url,false);
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xmlHttp.send(null);
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document.getElementById("txtHint").innerHTML=xmlHttp.responseText;
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}
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</script>
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</head>
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<body><form>
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First Name:
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<input type="text" id="txt1"
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onkeyup="showHint(this.value)">
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</form><p>Suggestions: <span id="txtHint"></span></p> </body>
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</html>