一个跟随鼠标的图片放大效果与FF兼容

div style="text-align:center" style="overfow: hidden; width: 100px; height: 100px"img src="http://img.warting.com/allimg/2015/1222/lizry520ci4-2292.jpg" width="100" height="100" border="0" onmouseover="show(this)" onmouseout="hide(this)"
/div
div style="text-align:center" style="overfow: hidden; width: 100px; height: 100px"
img src="http://img.warting.com/allimg/2015/1222/vn0f42y4r1e-2293.jpg" width="100" height="100" border="0" onmouseover="show(this)" onmouseout="hide(this)"
/div
div style="text-align:center" style="overfow: hidden; width: 100px; height: 100px"
img src="http://img.warting.com/allimg/2015/1222/3boqhgqb0ca-2294.jpg" width="100" height="100" border="0" onmouseover="show(this)" onmouseout="hide(this)"
/div
div id="enlarge_images" style="position: absolute; z-index:2"/div

SCRIPT        
function show(_this) {
    document.getElementById("enlarge_images").innerHTML = "img src='" + _this.src + "' ";
}
function hide(_this) {
    document.getElementById("enlarge_images").innerHTML = "";
}
function move_layer(event){
    event = event || window.event;
    enlarge_images.style.left=event.clientX+document.body.scrollLeft+10;
    enlarge_images.style.top=event.clientY+document.body.scrollTop+10;
}
document.onmousemove =move_layer;
/SCRIPT
<img src="http://img.warting.com/allimg/2015/1222/lizry520ci4-2292.jpg" width="100" height="100" onmouseover="show(this)" onmouseout="hide(this)"> <img src="http://img.warting.com/allimg/2015/1222/vn0f42y4r1e-2293.jpg" width="100" height="100" onmouseover="show(this)" onmouseout="hide(this)"> <img src="http://img.warting.com/allimg/2015/1222/3boqhgqb0ca-2294.jpg" width="100" height="100" onmouseover="show(this)" onmouseout="hide(this)">
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]