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 class=smallText><b><span id="'+theform.toString()+'">'+(thelimit-theform.value.length)+'</span></b> characters remaining.</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); 
			}
}