yukyo0821
/
my_tests


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">

<head>
    <meta name="description" content="Webpage description goes here" />
    <meta charset="utf-8">
    <title>Change_me</title>
    <script src="http://code.jquery.com/jquery-latest.min.js"></script>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="author" content="">

</head>

<body>

    <div class="container">
        <div id='info'></div>
        <table>
            <tr>
                <td><input type="hidden" value="3" />3</td>
                <td><input type="hidden" value="1" />1</td>
                <td><input id="tar" type="text" value="2" onchange="checkRange(this);" /></td>
            </tr>
        </table>
    </div>
    <script>
        function checkRange(ele)
        {
            if(parseFloat(ele.value) > parseFloat(ele.parentNode.previousElementSibling.previousElementSibling.childNodes[0].value))
                $('#info')[0].innerHTML = "超出上限";
            else if(parseFloat(ele.value) < parseFloat(ele.parentNode.previousElementSibling.childNodes[0].value))
                $('#info')[0].innerHTML = "超出下限";
            else
                $('#info')[0].innerHTML = "";
            //console.log(ele.parentNode.previousSibling);
        }
        //console.log($('#tar')[0].parentNode);
    </script>
</body>

</html>