/*
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='pozostało: <b><span id="'+theform.toString()+'">'+thelimit+'</span></b> znaków do wprowadzenia'

   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);
   }
}