스크립트 & 소스코드 공유

1 add jQuery and plug in to the page

<script src="js/jquery.min.js"></script>
<script src="js/jQuery.BlackAndWhite.js"></script>

2 add this class to the wrapper of the image that you want make in Black and White

<div class="bwWrapper">
<img src="path/to/your/image" width="image width" height="image height">
</div>

3 set the wrapper in this way from the css:

.bwWrapper {
position:relative;
display:block;
}

4 initialize the plug in on window load (no $(document).ready()) :

$(window).load(function(){
$('.bwWrapper').BlackAndWhite({
hoverEffect : true, // default true
// set the path to BnWWorker.js for a superfast implementation
webworkerPath : false,
// for the images with a fluid width and height
responsive:true,
// this option works only on the modern browsers ( on IE lower than 9 it remains always 1)
intensity:1,
speed: { //this property could also be just speed: value for both fadeIn and fadeOut
fadeIn: 200, // 200ms for fadeIn animations
fadeOut: 800 // 800ms for fadeOut animations
}
});
});

语法解释：

$("#select_id").change(function(){//code...}); //为Select添加事件，当选择其中一项时触发
var checkText=$("#select_id").find("option:selected").text(); //获取Select选择的Text
var checkValue=$("#select_id").val(); //获取Select选择的Value
var checkIndex=$("#select_id ").get(0).selectedIndex; //获取Select选择的索引值
var maxIndex=$("#select_id option:last").attr("index"); //获取Select最大的索引值
//jQuery设置Select选择的Text和Value:

语法解释：

$("#select_id ").get(0).selectedIndex=1; //设置Select索引值为1的项选中
$("#select_id ").val(4); //设置Select的Value值为4的项选中
$("#select_id option[text='jQuery']").attr("selected", true); //设置Select的Text值为jQuery的项选中
/*
jQuery添加/删除Select的Option项：
请选择
点击一次，Select将追加一个Option
点击将在Select第一个位置插入一个Option
点击将删除Select中索引值最大Option(最后一个)

语法解释：

$("#select_id").append("<option value='Value'>Text</option>"); //为Select追加一个Option(下拉项)
$("#select_id").prepend("<option value='0'>请选择</option>"); //为Select插入一个Option(第一个位置)
$("#select_id option:last").remove(); //删除Select中索引值最大Option(最后一个)
$("#select_id option[index='0']").remove(); //删除Select中索引值为0的Option(第一个)
$("#select_id option[value='3']").remove(); //删除Select中Value='3'的Option
$("#select_id option[text='4']").remove(); //删除Select中Text='4'的Option

清楚所有选项：

$("#select_id").empty();

<img src="图片路径" osrc="放大图片路径" class="ckshow_Img">

因为手机网页中图片大多数使用百分比显示

所以USEMAP的坐标错位

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script src="http://mattstow.com/experiment/responsive-image-maps/jquery.rwdImageMaps.min.js"></script>
<script>
(function($){
$(document).ready(function(e) {
$('img[usemap]').rwdImageMaps();
});
})(jQuery);
</script>