Hello

I was wondering if anyone could help me with the following problem, and if possible, kind of explain what it means too because Javascript is all new to me! I started reading a tutorial on Regexes but then got totally confused!

I have a text box (called 'cost') in a form which needs some validation done on it
1. Although the user is entering in a cost, the value entered must be a whole number ONLY, between 100 and 100000.
2. The user could enter in a ',' or a '£' (i.e. £2,000) but these characters would be ignored.

At the moment my form validation looks like this:

<script language="javascript">

function ProcessForm()
{

if (document.forms['goalform'].elements['cost'].value == "")
    {
        alert("Please enter how much your goal will cost.");
        document.forms['goalform'].elements['cost'].focus();
        return false;
    }

    return true;

}
</script>

I need to incorporate the regex bit into this code so that my cost textfield is checked for the above mentioned validation.

If anyone is able to help, it would be greatly appreciated.

Thanks in advance

Lucy xx

Hello Lucy

I think this should work. Just pass the value of the form field into uStr:

<script language ="javascript">

function processForm(uStr)
{


    uStr = uStr.replace(/\D+/g, '')//replace everything that isn't a number with nothing.
    document.forms['goalform'].elements['cost'].value = uStr


if (document.forms['goalform'].elements['cost'].value == "")
    {
        alert("Please enter how much your goal will cost.");
        document.forms['goalform'].elements['cost'].focus();
        return false;
    }


if (document.forms['goalform'].elements['cost'].value < 100 || document.forms['goalform'].elements['cost'].value > 100000)
    {
    alert("Should be at least 100 or at the most 100000!")
    document.forms['goalform'].reset()
    document.forms['goalform'].elements['cost'].focus();
    return false;
    }


}
</script>

HTH!
Cheers
Joe

Hi Joe

Thanks so much for helping me out - it all works beautifully :)

Lucy xx