[PhilJ]

Simple mod to limit the length of customer reviews. It shows an indication of how many characters are left. Made for v4.0.1.3

Adapted from http://www.dynamicdrive.com/dynamicindex16/limitinput.htm

1) Make a new file, skin1/reviewlimit.js

/*
Form field Limiter script- By Dynamic Drive
For full source code and more DHTML scripts, visit http://www.dynamicdrive.com
This credit MUST stay intact for use
*/

var ns6=document.getElementById&&!document.all

function restrictinput(maxlength,e,placeholder){
if (window.event&&event.srcElement.value.length>=maxlength)
return false
else if (e.target&&e.target==eval(placeholder)&&e.target.value.length>=maxlength){
var pressedkey=/[a-zA-Z0-9\.\,\/]/ //detect alphanumeric keys
if (pressedkey.test(String.fromCharCode(e.which)))
e.stopPropagation()
}
}

function countlimit(maxlength,e,placeholder){
var theform=eval(placeholder)
var lengthleft=maxlength-theform.value.length
var placeholderobj=document.all? document.all[placeholder] : document.getElementById(placeholder)
if (window.event||e.target&&e.target==eval(placeholder)){
if (lengthleft<0)
theform.value=theform.value.substring(0,maxlength)
placeholderobj.innerHTML=lengthleft
}
}


function displaylimit(thename, theid, thelimit){
var theform=theid!=""? document.getElementById(theid) : thename
var limit_text='<span id="'+theform.toString()+'">'+thelimit+'</span> characters remaining'
if (document.all||ns6)
document.write(limit_text)
if (document.all){
eval(theform).onkeypress=function(){ return restrictinput(thelimit,event,theform)}
eval(theform).onkeyup=function(){ countlimit(thelimit,event,theform)}
}
else if (ns6){
document.body.addEventListener('keypress', function(event) { restrictinput(thelimit,event,theform) }, true); 
document.body.addEventListener('keyup', function(event) { countlimit(thelimit,event,theform) }, true); 
}
}

2) Add this code at the top of skin1/customer/product.tpl

<script language=JavaScript1.3 src="{$SkinDir}/reviewlimit.js"></script>

3) In skin1/modules/Customer_Reviews/reviews.tpl

Change

<TEXTAREA cols="40" rows="4" name="review_message"></TEXTAREA>

to

<TEXTAREA cols="40" rows="4" name="review_message"></TEXTAREA>
<script>displaylimit("review","review_message",255)</script>

255 being the character limit. Change to whatever length you want.