Interpreting keystrokes

[Haraldo]

I would like to create a character count for a textarea which counts the number of characters but when a new line (return is pressed) the counter defaults back to a chosen number such as 160 or whatever.

So far i have been able to get the counter to increase and decrease on keystrokes but am unable to identify the return character. How do i check for a return chatacter so i can reset the counter and start again on a new line.

// So far
<script language="Javascript">

var max_len = <?= $maxPIN ?>;
var old_length = 0

// spn = span tag - field = value
function updateMaxPin(spn, field)
{
var string_len = field.value.length;

//alert(field.value+' '+string_len)

if ( string_len > 0 )
{
if ( string_len > old_length )
{
max_len = max_len - 1
}
else if ( string_len < old_length )
{
max_len = max_len + 1
}

old_length = string_len
}

if ( string_len == 0 )
{
spn.innerText = max_len+1
}
else
{
spn.innerText = max_len
}
}

</script>

Thanks for any help,

HB

 

[LFI]

When I escape(...) the value in a textarea using IE6, I notice that it interprets new line characters as '%0D%0A' (those are zeros, not o's).

So, if escape(...) works the same everywhere, you can try:

 var dfav = document.forms[0].textA.value;
 var nl = '%0D%0A';
 var val = escape(dfav);
 if(val.length == val.lastIndexOf(nl)+(nl).length)
 {
  ...
 }//end if

Try alert(val) after the val declaration to see what the 'escape(...)' command does to the textarea value.

'hope that helps.

--Dave

 

[vbkris]

or u could simply replcae the new line characters.

TheString = field.value.replace(/\r\n/g,"")
var string_len = TheString.length;


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