网络时空 | 网页特效

特效说明

页面中随机出现的星星点点的小花絮，用来点缀页面很不错的

特

效

代

码

<SCRIPT LANGUAGE="JavaScript1.2">
<!--

var intervals=2000
var sparksOn     = true;
var speed        = 40;
var power        = 3;

//Dont change these values-------
var documentWidth=documentHeight=randomx=randomy=leftcorner=topcorner=0
var ns=(document.layers);
var ie=(document.all);
var ns6=(document.getElementById&&!document.all);
var sparksAflyin = false;
var allDivs      = new Array(10);
var totalSparks  = 0;
//-------------------------------

function initAll(){
	if(!ns && !ie &&!ns6){
	sparksOn = false;
	return;
	}
setInterval("firework()",intervals)

if (ns)
	document.captureEvents(Event.MOUSEDOWN | Event.MOUSEMOVE);
	for(dNum=0; dNum<7; ++dNum){
		if(ie)
			allDivs[dNum]=eval('document.all.sDiv'+dNum+'.style');
                else if (ns6)
                        allDivs[dNum]=document.getElementById('sDiv'+dNum).style;
		else
			allDivs[dNum]=eval('document.layers["sDiv'+dNum+'"]');
	}
}

function firework(){
//below code detects the browser dimenions
if (ie){
documentWidth=document.body.clientWidth
documentHeight=document.body.clientHeight
leftcorner=document.body.scrollLeft
topcorner=document.body.scrollTop
}
else if (ns||ns6){
documentWidth=window.innerWidth
documentHeight=window.innerHeight
leftcorner=pageXOffset
topcorner=pageYOffset

}
//below code randomly generates a set of coordinates that fall within the dimension
randomx=leftcorner+Math.floor(Math.random()*documentWidth)
randomy=topcorner+Math.floor(Math.random()*documentHeight)

if(sparksOn){
		if(!sparksAflyin){
			sparksAflyin=true;
			totalSparks=0;
			for(var spark=0;spark<=6;spark++){
				dx=Math.round(Math.random()*50);
				dy=Math.round(Math.random()*50);
				moveTo(spark,randomx,randomy,dx,dy);
			}
		}
	}
}

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漂亮吗