飘动的文字1

HTML

<p>文字</p>

CSS

p{
	position: absolute;
	left: 10px;
	top: 0;
	opacity: 1;
}

JS

	var oP=document.getElementsByTagName("p")[0];
	var timer=null;
	document.onclick=function(){
		timer=setInterval(function(){
			var top1=parseInt(getStyle(oP,"top"))+10;
			var left1=parseInt(getStyle(oP,"left"))+10;
			var opctiy1=getStyle(oP,"opacity")-0.1;
			if(opctiy1==0){
				clearInterval(timer)
			}
			oP.style.top=top1+"px";
			oP.style.left=left1+"px";
			oP.style.opacity=opctiy1;
		},30)
	}
	
	function getStyle(obj,attr){
		if(obj.currentStyle){
			return obj.currentStyle(attr);
		}else{
			return getComputedStyle(obj)[attr];
		}
	}