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(theform,thelimit){
		var limit_text='<i> U kunt nog <span id="'+theform.toString()+'">'+(thelimit-theform.value.length)+'</span> teken(s) kwijt</i>'
      if (document.all||ns6)
        document.getElementById('maxText').innerHTML = 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); 
 	  }
	}