背景斜向移动

<html>

<head>
<title>网页特效|Linkweb.cn/Js|---背景斜向移动</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>

browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);

if (browserName != "Netscape" || browserVer >= 4.5) {

function moveback(movert,movedn,hPos,vPos) {

if (arguments[4])
document.body.style.backgroundImage = "url(\"" + arguments[4] + "\")";

if (arguments[5])
document.body.style.backgroundRepeat = arguments[5]

if (!isNaN(hPos)) {
if ((movert!=0) && (hPos>0)) hPos=-100000
hPos += movert
}
if (!isNaN(vPos)) {
if ((movedn!=0) && (vPos>0)) vPos=-100000
vPos+= movedn
}

document.body.style.backgroundPosition= hPos + " " + vPos
if (isNaN(hPos)) hPos = "\"" + hPos + "\""
if (isNaN(vPos)) vPos = "\"" + vPos + "\""
setTimeout("moveback("+movert+","+movedn+","+hPos+","+vPos+")",speed)
}

moveback(1,1,0,0, background);
}

//-->
</script>
</body>
</html>