checking a value within a form field

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checking a value within a form field

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cbruce

Joined: 01 Nov 2004
Posts: 1

Posted: Mon Nov 01, 2004 8:52 am checking a value within a form field

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How can I test for a specific value in the 9th character of an input field? ex: I have a 16 character field and I need to know if the 9th character = "B".

nagasree

Joined: 21 Sep 2004
Posts: 81
Location: Hyderabad, India

Posted: Tue Nov 02, 2004 1:52 am

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Try this

Code:

<script language="javascript">
function CheckChar(frm)
{
   var strVal= frm.txtTest.value;
   alert("Char at nineth postion : " + strVal.substring(8,9))
   alert("two Chars from twelfth postion : " + strVal.substring(11,13))
}
</script>
<BODY>
<FORM name=frmSample>
<INPUT TYPE="text" NAME="txtTest" value="This is an example"><BR>
<INPUT TYPE="button" name="bntCheck" value="Check" onclick="javascript:CheckChar(this.form)">
</FORM>
</BODY>

-Nagasree

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