Friday, April 18, 2014

JS select tag

http://stackoverflow.com/questions/18016643/change-select-tag-value-using-javascript

in select tag if you need the first default as selected

<html>
<head>
<script language="javascript">

    function test()
    {   
        if (document.getElementById('txtTest').value=='')
        {
            document.getElementById("rdoSelect").selectedIndex = 0;
        }
        else
        {
            document.getElementById("rdoSelect").selectedIndex = 1;
        }
    }

</script>
</head>
<body>
<input type="text" id="txtTest" onchange="test();" />
<select name="rdoSelect" id="rdoSelect">
  <option value="option1">Option 1</option>
  <option value="option2">Option 2</option>
</select>
</body>
</html>

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