原码如下:
custom-test.js
custom-test.js
var G_PIC_DAT=".jpg"; //图片扩展名; 要求大图与小图扩展名相同
var G_BIG_FIX="-b.jpg"; //大图的后缀形式,如pig.jpg(小图); pig-b.jpg(其对应大图)
var G_BIG_ID="bigImage"; //显示块的id
var G_PATH_PIC="images/"; //图片存放路径。现在要求大图与小图存在同一目录下
var G_BPIC_WIDTH="200"; //大图的大约的宽度
var G_CLIENTX; //最大限制宽
var G_CLIENTY; //最大限制高
var G_JQUERY_BIGIMG="#"+G_BIG_ID; //jquery表示的显示大图的块的id
$(document).ready(function() {
$("img").mouseover(function(){
//var isShow = document.all(G_BIG_ID).style.display;
if(this.src.indexOf(G_BIG_FIX) < 0 ){
var left = document.all[this.id].offsetLeft;
var top = document.all[this.id].offsetTop;
var width = document.all[this.id].width;
var height = document.all[this.id].height;
var bigImg = G_JQUERY_BIGIMG;
//JS方式,实现显示
/*
var theVal = document.getElementById("bigImage");
theVal.style.position="absolute";
theVal.style.left = left+width+5;
theVal.style.top = top;
theVal.style.display="";
*/
$(bigImg).css("position","absolute");
$(bigImg).css("left",left+width+5);
$(bigImg).css("top",top);
var theVal = document.getElementById(G_BIG_ID);
var src = this.src;
src = src.substring(src.indexOf(G_PATH_PIC)+7,src.indexOf(G_PIC_DAT)) + G_BIG_FIX;
src = G_PATH_PIC + src;
theVal.src = src;
$(bigImg).animate({opacity: 'show' }, 0);
}
});
$("img").mouseout(function(){
var left = document.all[this.id].offsetLeft;
var top = document.all[this.id].offsetTop;
var width = document.all[this.id].width;
var height = document.all[this.id].height;
//隐藏情况1: 垂直向下移动鼠标的隐藏情
if(parseFloat(window.event.clientY) > parseFloat(top+height)){
//alert("1");
$(G_JQUERY_BIGIMG).hide();
}
//隐藏情况2: 垂直向上移动鼠标的隐藏情况
//alert(window.event.clientY +"/"+ top)
if(parseFloat(window.event.clientY) < parseFloat(top)){
//alert("2");
$(G_JQUERY_BIGIMG).hide();
}
$(G_JQUERY_BIGIMG).mouseout(function(){
$(G_JQUERY_BIGIMG).hide();
})
});
});
var G_BIG_FIX="-b.jpg"; //大图的后缀形式,如pig.jpg(小图); pig-b.jpg(其对应大图)
var G_BIG_ID="bigImage"; //显示块的id
var G_PATH_PIC="images/"; //图片存放路径。现在要求大图与小图存在同一目录下
var G_BPIC_WIDTH="200"; //大图的大约的宽度
var G_CLIENTX; //最大限制宽
var G_CLIENTY; //最大限制高
var G_JQUERY_BIGIMG="#"+G_BIG_ID; //jquery表示的显示大图的块的id
$(document).ready(function() {
$("img").mouseover(function(){
//var isShow = document.all(G_BIG_ID).style.display;
if(this.src.indexOf(G_BIG_FIX) < 0 ){
var left = document.all[this.id].offsetLeft;
var top = document.all[this.id].offsetTop;
var width = document.all[this.id].width;
var height = document.all[this.id].height;
var bigImg = G_JQUERY_BIGIMG;
//JS方式,实现显示
/*
var theVal = document.getElementById("bigImage");
theVal.style.position="absolute";
theVal.style.left = left+width+5;
theVal.style.top = top;
theVal.style.display="";
*/
$(bigImg).css("position","absolute");
$(bigImg).css("left",left+width+5);
$(bigImg).css("top",top);
var theVal = document.getElementById(G_BIG_ID);
var src = this.src;
src = src.substring(src.indexOf(G_PATH_PIC)+7,src.indexOf(G_PIC_DAT)) + G_BIG_FIX;
src = G_PATH_PIC + src;
theVal.src = src;
$(bigImg).animate({opacity: 'show' }, 0);
}
});
$("img").mouseout(function(){
var left = document.all[this.id].offsetLeft;
var top = document.all[this.id].offsetTop;
var width = document.all[this.id].width;
var height = document.all[this.id].height;
//隐藏情况1: 垂直向下移动鼠标的隐藏情
if(parseFloat(window.event.clientY) > parseFloat(top+height)){
//alert("1");
$(G_JQUERY_BIGIMG).hide();
}
//隐藏情况2: 垂直向上移动鼠标的隐藏情况
//alert(window.event.clientY +"/"+ top)
if(parseFloat(window.event.clientY) < parseFloat(top)){
//alert("2");
$(G_JQUERY_BIGIMG).hide();
}
$(G_JQUERY_BIGIMG).mouseout(function(){
$(G_JQUERY_BIGIMG).hide();
})
});
});
注:要应用jquery需要有实现jquery相应的包. 本文需要的图片存放在images路径下(相对路径).文件扩展名是.jpg.小图的文件名如:cat.jpg则对应的大图文件名为cat-b.jpg. 这些配置在ready()外以全局形式声明. 可以随意修改.
另附html代码:
<html>
<head>
<title>Onion Skin DropShadwo with jQuery</title>
<style>
</style>
<script src="lib/jquery.js" type="text/javascript"></script>
<script src="custom-test.js" type="text/javascript"></script>
<body>
<h1>Change PIC - With jQuery</h1>
<div class="wrap0">
<tr>
<img id='img1' src='images/1.jpg'>
<br>
<img id='img2' src='images/2.jpg'>
<br>
<img id='img3' src='images/3.jpg'>
</tr>
</div>
<span >
<img id='bigImage' style='display:none;'>
</span>
</body>
</html>
<head>
<title>Onion Skin DropShadwo with jQuery</title>
<style>
</style>
<script src="lib/jquery.js" type="text/javascript"></script>
<script src="custom-test.js" type="text/javascript"></script>
<body>
<h1>Change PIC - With jQuery</h1>
<div class="wrap0">
<tr>
<img id='img1' src='images/1.jpg'>
<br>
<img id='img2' src='images/2.jpg'>
<br>
<img id='img3' src='images/3.jpg'>
</tr>
</div>
<span >
<img id='bigImage' style='display:none;'>
</span>
</body>
</html>
注: 在html中引入了两个js,第一个是jquery的js; 第二个是上面那个js.
如果有用jquery的朋友可以共同探讨. msn: sunyadonghbjm@hotmail.com