function scrollx(p){ var d = document,dd = d.documentElement,db = d.body,w = window,o = d.getElementById(p.id),ie6 = /msie 6/i.test(navigator.userAgent),style,timer; if(o){ o.style.cssText +=";position:"+(p.f&&!ie6?'fixed':'absolute')+";"+(p.l==undefined?'right:0;':'left:'+p.l+'px;')+(p.t!=undefined?'top:'+p.t+'px':'bottom:0'); if(p.f&&ie6){ o.style.cssText +=';left:expression(documentElement.scrollLeft + '+(p.l==undefined?dd.clientWidth-o.offsetWidth:p.l)+' + "px");top:expression(documentElement.scrollTop +'+(p.t==undefined?dd.clientHeight-o.offsetHeight:p.t)+'+ "px" );'; dd.style.cssText +=';background-image: url(about:blank);background-attachment:fixed;'; }else{ if(!p.f){ w.onresize = w.onscroll = function(){ clearInterval(timer); timer = setInterval(function(){ //雙選擇為了修復chrome 下xhtml解析時dd.scrollTop為 0 var st = (dd.scrollTop||db.scrollTop),c; c = st - o.offsetTop + (p.t!=undefined?p.t:(w.innerHeight||dd.clientHeight)-o.offsetHeight); if(c!=0){ o.style.top = o.offsetTop + Math.ceil(Math.abs(c)/10)*(c<0?-1:1) + 'px'; }else{ clearInterval(timer); } },10) } } } } } /* id 你要滾動的內容的id l 橫坐標的位置 不寫為緊貼右邊 t 你要放在頁面的那個位置默認是貼著底邊 0是貼著頂邊 f 1表示固定 不寫或者0表示滾動 */ scrollx({ id:'bb', l:30, t:490, f:0 })