// a simple count of character - js with jQuery
$('.countChar').bind('keyup',function(e){
	       var that = $(this),
	        	target = that.attr('data-target'),
	        	max = that.attr('data-max'),
	        	len = that.val().length,
	        	calc = max - len;
	        if(len > max){
	            var val = $(this).val();
	            $(this).val(val.substr(0, max));
	            calc = 0;
	        }
	        $('.'+target).text(calc);
	    });