https://midorinokaze-resort.com/common/js/opacity-rollover2.1.js

1/*=====================================================
2meta: {
3  title: "jquery-opacity-rollover.js",
4  version: "2.1",
5  copy: "copyright 2009 h2ham ([email protected])",
6  license: "MIT License(http://www.opensource.org/licenses/mit-license.php)",
7  author: "THE HAM MEDIA - http://h2ham.seesaa.net/",
8  date: "2009-07-21"
9  modify: "2009-07-23"
10}
11=====================================================*/
12(function($) {
13	
14	$.fn.opOver = function(op,oa,durationp,durationa){
15		
16		var c = {
17			op:op? op:1.0,
18			oa:oa? oa:0.6,
19			durationp:durationp? durationp:'fast',
20			durationa:durationa? durationa:'fast'
21		};
22		
23
24		$(this).each(function(){
25			$(this).css({
26					opacity: c.op,
27					filter: "alpha(opacity="+c.op*100+")"
28				}).hover(function(){
29					$(this).fadeTo(c.durationp,c.oa);
30				},function(){
31					$(this).fadeTo(c.durationa,c.op);
32				})
33		});
34	},
35	
36	$.fn.wink = function(durationp,op,oa){
37
38		var c = {
39			durationp:durationp? durationp:'slow',
40			op:op? op:1.0,
41			oa:oa? oa:0.2
42		};
43		
44		$(this).each(function(){
45			$(this)	.css({
46					opacity: c.op,
47					filter: "alpha(opacity="+c.op*100+")"
48				}).hover(function(){
49				$(this).css({
50					opacity: c.oa,
51					filter: "alpha(opacity="+c.oa*100+")"
52				});
53				$(this).fadeTo(c.durationp,c.op);
54			},function(){
55				$(this).css({
56					opacity: c.op,
57					filter: "alpha(opacity="+c.op*100+")"
58				});
59			})
60		});
61	}
62	
63})(jQuery);