PHP javascript submit form under Select onChange action: PHP, Javascript

PHP javascript submit form under Select onChange action

Asked by: cwteoh

Dear experts,
I have been trying to fix this issue...
common script ... when I try to select any value in a SELECT dropdown, as shown below... I got an error code "Object doesn't support this property or method"

Anyone help!!!

<select name='cbo_origin' onChange='submitSelvalue(this.form)'>
  <option value='0'>Please Select</option>
    <optgroup label='Origin'>
      <option value='1'>Origin1</option>
      <option value='2'>Origin2</option>
    </optgroup>
</select>
 
<script type="text/javascript">
function submitorigin(x)
{
		var SelIdx = x.cbo_origin.selectedIndex;
		var SelVal = x.cbo_origin.options[SelIdx].value;
		if (SelVal != "0")
		{
		x.originId.value = SelVal;
		x.submit();
		}
}
</script>

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Hi dear,

You know, javascript is a flexible language therefore to rich a target with it you have multiple solutions. Here is my way and I hope it help you

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  <meta http-equiv="content-type" content="text/html; charset=windows-1250">
  <title>some title</title>
  </head>
  <body>
 
<form method="GET" action="test.htm">
<select name='cbo_origin' id='cbo_origin' onChange='submitorigin();'>
  <option value='0'>Please Select</option>
    <optgroup label='Origin'>
      <option value='1'>Origin1</option>
      <option value='2'>Origin2</option>
    </optgroup>
</select>
<input type="hidden" name="originId" id="originId" value="-1">
</form>
 
<script type="text/javascript">
function submitorigin()
{
                var mySelect = document.getElementById('cbo_origin');
                var SelIdx = mySelect.selectedIndex;
                var SelVal = mySelect.options[SelIdx].value;
                if (SelVal != "0")
                {
                document.getElementById('originId').value = SelVal;
                mySelect.form.submit();
                }
}
</script>
 
 
 
  </body>
</html>

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PHP javascript submit form under Select onChange action

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