当鼠标移到产品缩略图上时能弹出显示大图，用JS写两个函数即可实现
一个函数在鼠标移到图片上调用，显示隐藏层并将图片载入到层中;
另一个函数在鼠标移出图片上调用，清空层的内容并隐藏层。使用时需将"this.src"改为产品大图地址。
以下是引用片段
%26lt;html%26gt;
%26lt;head%26gt;
%26lt;meta http-equiv="Content-Type" content="text/html; charset=gb2312" /%26gt;
%26lt;title%26gt;JS函数实现鼠标指向后带图片的提示效果%26lt;/title%26gt;
%26lt;script language="javascript"%26gt;
function showPic(sUrl){
var x,y;
x = event.clientX;
y = event.clientY;
document.getElementById("Layer1").style.left = x;
document.getElementById("Layer1").style.top = y;
document.getElementById("Layer1").innerHTML = "%26lt;img src=\"" + sUrl + "\"%26gt;";
document.getElementById("Layer1").style.display = "block";
}
function hiddenPic(){
document.getElementById("Layer1").innerHTML = "";
document.getElementById("Layer1").style.display = "none";
}
%26lt;/script%26gt;
%26lt;/head%26gt;
%26lt;body%26gt;
%26lt;div id="Layer1" style="display:none;position:absolute;z-index:1;"%26gt;%26lt;/div%26gt;
%26lt;img src="/images/logo.gif" onmouseout="hiddenPic();" onmousemove="showPic(this.src);" /%26gt;
%26lt;p%26gt;%26lt;/p%26gt;
%26lt;img src="/img/200406301.jpg" onmouseout="hiddenPic();" onmousemove="showPic(this.src);" /%26gt;
%26lt;/body%26gt;
%26lt;/html%26gt;