Form Validation not working. Pls help.

[will.chen]

Hi:

I have a form input field that need to be validated with at least 5 character and must contain one letter and 1 number. But it is not working. Below is my code. Please help. Thank you.

<form id="search_mini_form" action="/catalogsearch/result/" method="get" target="frame1">
<div class="form-search"><label for="search">Search:</label> 
<input id="search" class="input-text" type="text" name="q" value=""  /> 
<button class="button" title="Search" type="submit" ><span><span>Search</span></span></button>

<script type="text/javascript">
<!--
function checkserial(){
var reg = /^.*(?=.{4,10})(?=.*\d)(?=.*[a-zA-Z]).*$/i //regular expression defining a 5 digit number
if (document.search_mini_form.q.value.test(reg)==-1) //if match failed
alert("Please enter a valid serial number.")
}
-->
</script>

</form>

[Padonak]

try this one

... if (!reg.test(document.search_mini_form.q.value)) ...