https://www.artpark.net/cmscore/js/placeholder/placeholder.js?v=1.29.8.1d88f734

1/**
2 * Example: inputPlaceholder( document.getElementById('my_input_element') )
3 * @param {Element} input
4 * @param {String} [color='#AAA']
5 * @return {Element} input
6 */
7function inputPlaceholder (input, color) {
8
9	if (!input) return null;
10
11	// Do nothing if placeholder supported by the browser (Webkit, Firefox 3.7)
12	if (input.placeholder && 'placeholder' in document.createElement(input.tagName)) return input;
13
14	color = '#AAA';
15	var default_color = input.style.color;
16	var placeholder = input.getAttribute('placeholder');
17
18	if (input.value === '' || input.value == placeholder) {
19		input.value = placeholder;
20		input.style.color = color;
21		input.setAttribute('data-placeholder-visible', 'true');
22	}
23
24	var add_event = /*@cc_on'attachEvent'||@*/'addEventListener';
25
26	input[add_event](/*@cc_on'on'+@*/'focus', function(){
27	 input.style.color = default_color;
28	 if (input.getAttribute('data-placeholder-visible')) {
29		 input.setAttribute('data-placeholder-visible', '');
30		 input.value = '';
31	 }
32	}, false);
33
34	input[add_event](/*@cc_on'on'+@*/'blur', function(){
35		if (input.value === '') {
36			input.setAttribute('data-placeholder-visible', 'true');
37			input.value = placeholder;
38			input.style.color = color;
39		} else {
40			input.style.color = default_color;
41			input.setAttribute('data-placeholder-visible', '');
42		}
43	}, false);
44
45	input.form && input.form[add_event](/*@cc_on'on'+@*/'submit', function(){
46		if (input.getAttribute('data-placeholder-visible')) {
47			input.value = '';
48		}
49	}, false);
50
51	return input;
52}
53
54dojo.ready(function() {
55    dojo.query('[placeholder]').forEach(inputPlaceholder);
56});