JS隨屏滾動(dòng)HTML4.0解析版代碼

2024-09-05 12:18:33

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供稿：網(wǎng)友

JS隨屏滾動(dòng)HTML4.0解析版代碼，與上一個(gè)XHTML解析版的功能是一樣的，只不過(guò)采用的解析塊是不同的，網(wǎng)頁(yè)上的指定塊隨屏滾動(dòng)功能，我認(rèn)為還是比較實(shí)用的。

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=gbk" /><title>隨屏滾動(dòng)</title><style>	html,body{		padding:0;		margin:0;	}</style></head><body>	<div   class="iwvjtn8m0"   id="aa" style="width:100px;height:100px;background:#c0c0c0;" >我在隨平滾</div>	<div   class="iwvjtn8m0"   id="bb" style="width:100px;height:100px;background:#c0c0c0;" >我靜止不動(dòng)</div>	<div style="width:100%;height:1500px;background:#000"></div>	<div style="width:100%;height:1500px;background:green"></div>	<div style="width:100%;height:1500px;background:red"></div></body></html><script>   	function scroll(p){    	var d = document,dd = d.documentElement,db = d.body,w = window,o = d.getElementById(p.id),ie = /msie/i.test(navigator.userAgent),style,timer;    	if(o){			//ie8下position:fixed下top left失效    		o.style.cssText +=";position:"+(p.f&&!ie?'fixed':'absolute')+";"+(p.l==undefined?'right:0;':'left:'+p.l+'px;')+(p.t!=undefined?'top:'+p.t+'px':'bottom:0');    		if(p.f&&ie){				o.style.cssText +=';left:expression(body.scrollLeft + '+(p.l==undefined?db.clientWidth-o.offsetWidth:p.l)+' + "px");top:expression(body.scrollTop +'+(p.t==undefined?db.clientHeight-o.offsetHeight:p.t)+'+ "px" );'				db.style.cssText +=";background-image:url(about:blank);background-attachment:fixed;"			}else{				if(!p.f){					 w.onresize = w.onscroll = function(){						clearInterval(timer);						timer = setInterval(function(){							var st = db.scrollTop,c;							c = st  - o.offsetTop + (p.t!=undefined?p.t:(w.innerHeight||db.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)					}				}			}    	}      }    scroll({    	id:'aa'	    })	 scroll({		id:'bb',		l:0,		t:200,		f:1	 })</script>

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