
/*
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>'
    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);
    }
  }
