Posted in Javascript onJune 18, 2009
<!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=gb2312" /> <title>一段左右两边随屏滚动的代码</title> </head> <body> <script language="javascript"> var delta=0.15 var collection; var closeB=false; function floaters(){ this.items=[]; this.addItem=function (id,x,y,content) { document.write('<DIV id='+id+' style="Z-INDEX: 10; POSITION: absolute; width:80px; height:60px;left:'+(typeof (x)=='string'?eval(x):x)+';top:'+(typeof (y)=='string'?eval(y):y)+'">'+content+'</DIV>'); var newItem={ }; newItem.object=document.getElementById(id); newItem.x=x; newItem.y=y; this.items[this.items.length]=newItem; } this.play=function () { collection=this.items setInterval('play()',10); } } function play() { if(screen.width<=648||closeB) { for(var i=0;i<collection.length;i++) { collection[i].object.style.display='none'; } return ; } for(var i=0;i<collection.length;i++) { var followObj=collection[i].object; var followObj_x=(typeof (collection[i].x)=='string'?eval(collection[i].x):collection[i].x); var followObj_y=(typeof (collection[i].y)=='string'?eval(collection[i].y):collection[i].y); if(followObj.offsetLeft!=(document.documentElement.scrollLeft+followObj_x)) { var dx=(document.documentElement.scrollLeft+followObj_x-followObj.offsetLeft)*delta; dx=(dx>0?1:-1)*Math.ceil(Math.abs(dx)); followObj.style.left=followObj.offsetLeft+dx; } if(followObj.offsetTop!=(document.documentElement.scrollTop+followObj_y)) { var dy=(document.documentElement.scrollTop+followObj_y-followObj.offsetTop)*delta; dy=(dy>0?1:-1)*Math.ceil(Math.abs(dy)); followObj.style.top=followObj.offsetTop+dy; } followObj.style.display=''; } } function closeBanner() { closeB=true; return ; } var theFloaters=new floaters(); // theFloaters.addItem('followDiv2',22,238,'<a href=http://idc.66so.com/ target=_blank><img src=http://www.asp300.com/adimg/66so.gif border=0></a><br><br><a href=http://www.red.net.cn target=_blank><img src=http://www.asp300.com/adimg/red.gif border=0></a><br><br><a href=http://www.wiidc.com target=_blank><img src=http://www.asp300.com/adimg/wiidc.gif border=0></a><br><br><img align=right src=http://www.asp300.com/images/ADclose.gif border=0 onClick="closeBanner();">'); theFloaters.addItem('followDiv1','document.body.clientWidth-100',238,'<a href=http://www.zgdata.com/stat/stat.asp?siteKey=asp300&pageNO=1&urlCode=91a3ed97bd9897d315ff6bfaba46a8ee target=_blank><img src=http://www.asp300.com/adimg/zgdata.gif border=0 height=80 width=80></a><br><br><a href=http://www.go020.net/style/info/host.asp?typeid=1 target=_blank><img src=http://www.asp300.com/adimg/go020.gif border=0></a><br><br><a href=http://www.phsjnet.com target=_blank><img src=http://www.asp300.com/adimg/phsjnet.gif border=0></a><br><br><img align=right src=http://www.asp300.com/images/ADclose.gif border=0 onClick="closeBanner();">'); theFloaters.play(); </script> <br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /> <br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /> <br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /> <br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /> <br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /> </body> </html>
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javascript 一段左右两边随屏滚动的代码
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