Re: [SLUG] Javascript Problem

From: Paul M Foster (paulf@quillandmouse.com)
Date: Sun Oct 15 2006 - 22:51:20 EDT


Daniel Jarboe wrote:
> Ruby on Rails is way overkill for this... this is pretty basic
> client-side javascript functionality
>
> quick and dirty version below, season to taste
>
> <script type="text/javascript">
> function update(source)
> { var i,number,temp=""
> // valid number, no-decimal
> if ( !isNaN(source.value) && (source.value.indexOf(".")==-1) &&
> // assign value to number and test greater than 0
> (number=parseInt(source.value,10))>0 )
> { for (i=0;i<number;i++)
> temp+="<input type='text' name='value"+i+"'><br>"
> document.getElementById("updateMe").innerHTML=temp
> }
> else
> alert("Error: Positive integer required")
> }
> </script>
> <form>
> How many? <input type=text onchange="update(this)">
> <div id="updateMe">
> </div>
> </form>
>
>

Thanks. This works as advertised, though minor changes break it. Hmm.

It's all part of a large project to transfer our invoicing and such from
FoxPro to PHP/PostgreSQL. Under the circumstances, AJAX and Javascript
appear to be the ideal solutions to certain problems. I'm just not
conversant enough with those technologies. So I'm trying to get a leg up
(or two).

-- 
Paul M. Foster
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