function ccounter_func(){ 	var $max = 500;	if (document.getElementById("msginput")) {		var $msginput = document.getElementById("msginput");		var $ccounter_input = document.getElementById("ccounter");		var $msglen = $msginput.value.length;		if($msglen > 0) {
			var $ccounter = $max - $msglen;
			$ccounter_input.value = $ccounter;
		} else {
			$ccounter_input.value = $max;
		}

		if($msglen > $max) {
			alert("Üzenet max hossza: "+$max);
			$msginput.value = $msginput.value.substring(0,$max);
			$ccounter_input.value=0;
		}
	} else {
		return false;
	}
}
ccounter_func();if (document.getElementById("msginput")) {	$msginput = document.getElementById("msginput");	$msginput.onkeyup = ccounter_func;}