10.js

宁波娱乐在线城市,丰富的内容版块

N = 30;  
Y = new Array(); 
X = new Array(); 
S = new Array(); 
A = new Array(); 
B = new Array(); 
M = new Array(); 
V = (document.layers)?1:0; 
 
iH=(document.layers)?window.innerHeight:window.document.body.clientHeight; 
iW=(document.layers)?window.innerWidth:window.document.body.clientWidth; 
for (i=0; i < N; i++){                                                                 
 Y[i]=Math.round(Math.random()*iH); 
 X[i]=Math.round(Math.random()*iW); 
 S[i]=Math.round(Math.random()*5+2); 
 A[i]=0; 
 B[i]=Math.random()*0.1+0.1; 
 M[i]=Math.round(Math.random()*1+1); 
} 
if (V){ 
for (i = 0; i < N; i++) 
{document.write("<LAYER NAME='sn"+i+"' LEFT=0 TOP=0 BGCOLOR='#FFFFFF' CLIP='0,0,"+M[i]+","+M[i]+"'></LAYER>")} 
} 
else{ 
document.write('<div style="position:absolute;top:0px;left:0px">'); 
document.write('<div style="position:relative">'); 
for (i = 0; i < N; i++) 
{document.write('<div id="si" style="position:absolute;top:0;left:0;width:'+M[i]+';height:'+M[i]+';background:#ffffff;font-size:'+M[i]+'"></div>')} 
document.write('</div></div>'); 
} 
function snow(){ 
var H=(document.layers)?window.innerHeight:window.document.body.clientHeight; 
var W=(document.layers)?window.innerWidth:window.document.body.clientWidth; 
var T=(document.layers)?window.pageYOffset:document.body.scrollTop; 
var L=(document.layers)?window.pageXOffset:document.body.scrollLeft; 
for (i=0; i < N; i++){ 
sy=S[i]*Math.sin(90*Math.PI/180); 
sx=S[i]*Math.cos(A[i]); 
Y[i]+=sy; 
X[i]+=sx;  
if (Y[i] > H){ 
Y[i]=-10; 
X[i]=Math.round(Math.random()*W); 
M[i]=Math.round(Math.random()*1+1); 
S[i]=Math.round(Math.random()*5+2); 
} 
if (V){document.layers['sn'+i].left=X[i];document.layers['sn'+i].top=Y[i]+T} 
else{si[i].style.pixelLeft=X[i];si[i].style.pixelTop=Y[i]+T}  
A[i]+=B[i]; 
} 
setTimeout('snow()',150); //雪花飞行速度，值大则慢。
} 
snow();