﻿/*****************************************************************************
Purpose: to limit the amount of characters that can be entered into a textarea
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 
*****************************************************************************/
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(theform,thelimit,thetext)
{
var ns6=document.getElementById&&!document.all
var limit_text='<b><span id="'+theform.toString()+'">'+thelimit+'</span></b> '+ thetext;
 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); 
  }
}
/*****************************************************************************/