Hi,
I have a page with some javascript (that I copied, as I
have no idea how to use JS).
The JS tests to see if a value is a valid hex col value.
Can someone tell me the best way to make the form
code interact with the script. I think onValidate is the
one but this doesn't seem to work.
I'm a beginner so please be clear. Here is the code:
Code:
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<script language="JavaScript">
// *** check the input hex colour value ***
function valhex(){
var validchars="1234567890ABCDEF";
var userclr=document.gethex.usernum.value;
var txtlen = userclr.length;
var usrerr=0
if (txtlen != 6) {usrerr = 1;}
for (count = 0; count<=6; count++){
var digit = userclr.charAt(count).toUpperCase();
if (validchars.indexOf(digit) == -1){usrerr=1;}
}
if (usrerr !=0) {
alert("The value you entered is not correct");
document.gethex.usernum.focus();}
else {ChngClr(userclr);}
}
</script>
<body>
<cfform name="gethex" method="post" action="hex_result.cfm">
<p> #
<cfinput type="text" name="usernum" onValidate="valhex()">
</p>
<p>
<cfinput type="submit" name="Submit" value="Submit">
</p>
</cfform>
</body>
</html>
I've so far had the JS pop up the message if it's not a
valid hex but then it actions the next page anyway. I
need it to stop if it returns a false value.
thanks.
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January 25th, 2005, 09:54 AM
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