https://www.miamiarch.org/Library/js/blog_disclaimer.js?v=2

1	function f_RefreshImage_captcha(valImageId) {
2		var objImage = document.images[valImageId];
3		if (objImage == undefined) {
4			return;
5		}
6		var now = new Date();
7		objImage.src = objImage.src.split('?')[0] + '?x=' + now.toUTCString();
8	}        
9
10	function formsubmiTest(v_form) {		
11		
12		if (!(default_validation(v_form))) {
13			return false;
14		}			
15		
16		return true;
17	}
18	
19	function ToggleComment() {
20			if (!($('#Comments1').is(":visible")))	{		
21				$('#Disclaimer').toggle();
22				$('#show_disclamer').hide();
23			}
24	}        	
25	
26	function f_show_comments()	{		
27			$('#Disclaimer').hide();
28			$('#show_disclamer').hide();
29			$('#Comments1').show();
30	}
31	
32	function limitChars(textid, limit, infodiv) {
33     var text = $('#'+textid).val(); 
34     var textlength = text.length;
35     if(textlength > limit) {
36    	 $('#' + infodiv).html('You cannot write more than '+limit+' characters!');
37    	  $('#'+textid).val(text.substr(0,limit));
38    	  return false;
39     } else {
40      $('#' + infodiv).html('You have '+ (limit - textlength) +' characters left.');
41      return true;
42     }
43	}
44 
45	$(function(){
46      $('#message_comment').keyup(function()  { 
47    	   limitChars('message_comment', 2000, 'charlimitinfo');	
48      })
49	});