<input id="testID" type="text"/>
<ul id="test1">
    
</ul>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script >
var queryURL="http://suggestion.baidu.com/su?json=1&p=3&sid=&cb=?&_"+new Date()/1;
$(function(){
    $("#testID").keyup(function(){
        search();
    });    
});

function search(){
        $("#test1").empty();
        $.getJSON(queryURL+"&wd="+$("#testID").val(),function(data){            
            for(var i in data.s)
            {
                $("#test1").append("<li>"+data.s[i]+"</li>");
            }
        });
}
</script>