asked on

JavaScript validation with an onChange in a form.

Hi I have a quick question. How do I make a Javascript code that checks to see if 9 numbers are entered in to a text field then takes you to another page while passing the 9 numbers into a form?

CJ_S

function formSubmit(sVal)
{
var sError = "";
if(sVal.length!=9 || isNaN(sVal)) sError+="- Please enter 9 digits";

if(sError!="") alert("The following errors occured: \n"+sError);
return sError=="";
}

and call it using
<form>
<input type="text" onChange="if(formSubmit(this.value)) this.form.submit();">
</form>

CJ_S

<html>
<head>
<script language="javascript">
function formSubmit(sVal)
{
var sError = "";
if(sVal.length!=9 || isNaN(sVal)) sError+="- Please enter 9 digits";

if(sError!="") alert("The following errors occured: \n"+sError);
return sError=="";
}
</script>
</head>

<body>
<form action="nextpage.asp">
<input type="text" onChange="if(formSubmit(this.value)) this.form.submit();">
</form>
</body>
</html>

or with the form being:

<form action="nextpage.asp" onSubmit="return formSubmit(this.txt1.value)">
<input type="text" name="txt1"><br>
<input type="submit">
</form>

ASKER CERTIFIED SOLUTION

cubrovic

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SOLUTION

CJ_S

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jaysolomon

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Split: cubrovic {http:#8759027} & CJ_S {http:#8759133}

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