JS实现让网页背景图片斜向移动的方法
本文实例讲述了JS实现让网页背景图片斜向移动的方法。分享给大家供大家参考。具体实现方法如下：
<html>
<head>
<title>JS实现让网页背景图片斜向移动</title>
<bodybackground="images/changshi.ico">
<scriptlanguage="Javascript">
<!--
functionselectAll(theField){
vartempval=eval("document."+theField)
tempval.focus()
tempval.select()
}
//-->
</script>
<scriptlanguage="Javascript">
<!--
varbackground="images/changshi.ico";
varspeed=0;
browserName=navigator.appName;
browserVer=parseInt(navigator.appVersion);
if(browserName!="Netscape"||browserVer>=4.5){
functionmoveback(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>