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combine 3 form values into 1

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Nov 16.2010

Hi,

I have a form where dob is generated using 3 select boxes, 1 for day, month and year. My output needs to be in the form dob=dd-mm-yyyy rather than day=dd, month=mm and year=yyyy.

It has been suggested that i do the following:

“On submit button click, use JS to create a hidden input (Q5) in the form and assign its value, then disable the day, month, and year fields so they are not submitted.”

Does anyone know how to do this?

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JavaScript

1 Comments(s) ↴

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@FangNov 16.2010 — 'hiding' doesn't work[CODE]<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title></title>

<script type="text/javascript">
function formatDate(f) {
f.dob.value = f.day.value+"-"+f.month.value+"-"+f.year.value;
f.day.removeAttribute('name');
f.month.removeAttribute('name');
f.year.removeAttribute('name');
}
</script>

<style type="text/css">
* {margin:0;padding:0;}
</style>

</head>
<body>
<form action="" method="get" name="form1" onsubmit="formatDate(this);">
<input type="text" name="day" value="16">
<input type="text" name="month" value="11">
<input type="text" name="year" value="2010">
<input type="hidden" name="dob" value="">
<button type="submit">submit</button>
</form>
</body>
</html>
[/CODE]
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