急,高手请帮忙,放大镜效果IE和firefox兼容问题,
这里是代码,兼容效果在http://www.giftour.com/test/1.html可以看到
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<style type="text/css">  
<!--  
	*{padding:0;margin:0}  
	#smallbox{border:1px #ffffff solid;float:left;width:0;height:0;overflow:hidden}  
	#bigbox{border:1px #ccc solid;width:0px;height:0px;background:url(images/2.jpg) no-repeat;}  
	#view{border:1px #ccc solid;width:0px;height:0px;position:absolute}  
-->  
</style>  
<script language="JavaScript">  
<!--  
var srcX = 2000;  
var srcY = 2000;  
var bigX = 290;  
var bigY = 290;  
var smallX = 290;
var smallY = 290;  
var viewX = bigX / srcX * smallX;  
var viewY = bigY / srcY * smallY;  
var bl = srcX / smallX;
var border = 1;
window.onload=function (){  
     bigbox.style.borderWidth=border;  
     bigbox.style.width=bigX+border*2;  
     bigbox.style.height=bigY+border*2;  
     smallpic.width=smallX;  
     smallpic.height=smallY;  
     view.style.width=viewX;  
     view.style.height=viewY;  
     smallbox.style.borderWidth=border;  
     if (window.event){  
         smallbox.style.width=smallpic.offsetWidth+border*2;  
         smallbox.style.height=smallpic.offsetHeight+border*2;  
     }else{  
         smallbox.style.width=smallpic.offsetWidth;  
         smallbox.style.height=smallpic.offsetHeight;  
     }  
     move(event);  
}  
function move(e){  
		var e = window.event?window.event:e;  
		var iebug = 0;  
		if (window.event){  
			var vX = e.offsetX - viewX/2;  
			var vY = e.offsetY - viewY/2;  
		}else{  
			var vX = e.pageX - viewX/2 - smallbox.offsetLeft - border;  
			var vY = e.pageY - viewY/2 - smallbox.offsetTop - border;  
			iebug = 2;  
		}  
		if (vX < 0) vX = 0;  
		if (vY < 0) vY = 0;  
		if (vX > smallX - viewX - iebug) vX = smallX - viewX - iebug;  
		if (vY > smallY - viewY - iebug) vY = smallY - viewY - iebug;  
		view.style.left = vX + smallbox.offsetLeft + border;  
		view.style.top = vY + smallbox.offsetTop + border;  
		bigbox.style.backgroundPosition= - vX * bl + " " + -vY * bl;  
}  
function otherImages(images290,images2000)
{
	var obj290 = document.getElementById('smallpic');
	obj290.src=images290;
	bigbox.style.background="url("+images2000+")";
}
displayDIV('');
function displayDIV(viewStyle)
{
	bigbox.style.display=viewStyle;
	view.style.display=viewStyle;
}
//-->  
</script>  
<body>
<div id="smallbox"><img id="smallpic" src="images/1.jpg" border="0" onmousemove="move(event)" onmouseover="displayDIV('')" onmouseout="displayDIV('none')" /></div>
<div id="bigbox"></div>
<div><img src="images/1.jpg" width="120" height="120" align="left" onmousemove="otherImages('images/1.jp