lastScrollY=0; function heartBeat(){ var diffY; if (document.documentElement && document.documentElement.scrollTop) diffY = document.documentElement.scrollTop; else if (document.body) diffY = document.body.scrollTop else {/*Netscape stuff*/} //alert(diffY); percent=.1*(diffY-lastScrollY); if(percent>0)percent=Math.ceil(percent); else percent=Math.floor(percent); document.getElementById("lovexin12").style.top=parseInt(document.getElementById("lovexin12").style.top)+percent+"px"; lastScrollY=lastScrollY+percent; //alert(lastScrollY); } //position: absolute可以改成relative,虽然relative显示的位置是相对的,比较准确,但是宽屏下还是绝对定位到一边用户体验好点。 document.write('
'); var recontent='
' + '' + '' + '' + '' + '' + '' + '' + '' + '
'; document.write('
'); document.write('
'); document.write('
'); document.write('
'); //document.write(recontent); document.write('
'); window.setInterval("heartBeat()",1); function far_close() { document.getElementById("lovexin12").innerHTML=""; } function setfrme() { var tr=document.getElementById("lovexin12"); var twidth=tr.clientWidth; var theight=tr.clientHeight; var fr=document.getElementById("frame55la"); fr.width=twidth-1; fr.height=theight-30; } function ld(i,off) { var L=document.getElementById("oDiv"+i); if (off=="no") { L.style.display="none"; } if (off=="yes") { L.style.display=""; } }