1 <html>
2 <head>
3 <title>全屏雪花飘落的背景特效丨电表控制器</title>
4 <script language="JavaScript">
5 <!--
6 Amount=20; //Smoothness! depends on image file size, the smaller the size the more you can use!
7 //Pre-load your image below!
8 Image0=new Image();
9 Image0.src="/html/txdm_2/images/20101019/flake1.gif";
10 Image1=new Image();
11 Image1.src="/html/txdm_2/images/20101019/flake2.gif";
12 Image2=new Image();
13 Image2.src="/html/txdm_2/images/20101019/flake3.gif";
14 Image3=new Image();
15 Image3.src="/html/txdm_2/images/20101019/flake4.gif";
16 Image4=new Image();
17 Image4.src="/html/txdm_2/images/20101019/flake5.gif";
18 grphcs=new Array(5)
19 grphcs[0]="/html/txdm_2/images/20101019/flake1.gif"
20 grphcs[1]="/html/txdm_2/images/20101019/flake2.gif"
21 grphcs[2]="/html/txdm_2/images/20101019/flake3.gif"
22 grphcs[3]="/html/txdm_2/images/20101019/flake4.gif"
23 grphcs[4]="/html/txdm_2/images/20101019/flake5.gif"
24 Ypos=new Array();
25 Xpos=new Array();
26 Speed=new Array();
27 Step=new Array();
28 Cstep=new Array();
29 ns=(document.layers)?1:0;
30 if (ns){
31 for (i = 0; i < Amount; i++){
32 var P=Math.floor(Math.random()*grphcs.length);
33 rndPic=grphcs[P];
34 document.write("<LAYER NAME='sn"+i+"' LEFT=0 TOP=0><img src="+rndPic+"></LAYER>");
35 }
36 }
37 else{
38 document.write('<div style="position:absolute;top:0px;left:0px"><div style="position:relative">');
39 for (i = 0; i < Amount; i++){
40 var P=Math.floor(Math.random()*grphcs.length);
41 rndPic=grphcs[P];
42 document.write('<img id="si" src="'+rndPic+'" style="position:absolute;top:0px;left:0px">');
43 }
44 document.write('</div></div>');
45 }
46 WinHeight=(document.layers)?window.innerHeight:window.document.body.clientHeight;
47 WinWidth=(document.layers)?window.innerWidth:window.document.body.clientWidth;
48 for (i=0; i < Amount; i++){
49 Ypos[i] = Math.round(Math.random()*WinHeight);
50 Xpos[i] = Math.round(Math.random()*WinWidth);
51 Speed[i]= Math.random()*3+2;
52 Cstep[i]=0;
53 Step[i]=Math.random()*0.1+0.05;
54 }
55 function fall(){
56 var WinHeight=(document.layers)?window.innerHeight:window.document.body.clientHeight;
57 var WinWidth=(document.layers)?window.innerWidth:window.document.body.clientWidth;
58 var hscrll=(document.layers)?window.pageYOffset:document.body.scrollTop;
59 var wscrll=(document.layers)?window.pageXOffset:document.body.scrollLeft;
60 for (i=0; i < Amount; i++){
61 sy = Speed[i]*Math.sin(90*Math.PI/180);
62 sx = Speed[i]*Math.cos(Cstep[i]);
63 Ypos[i]+=sy;
64 Xpos[i]+=sx;
65 if (Ypos[i] > WinHeight){
66 Ypos[i]=-60;
67 Xpos[i]=Math.round(Math.random()*WinWidth);
68 Speed[i]=Math.random()*5+2;
69 }
70 if (ns){
71 document.layers['sn'+i].left=Xpos[i];
72 document.layers['sn'+i].top=Ypos[i]+hscrll;
73 }
74 else{
75 si[i].style.pixelLeft=Xpos[i];
76 si[i].style.pixelTop=Ypos[i]+hscrll;
77 }
78 Cstep[i]+=Step[i];
79 }
80 setTimeout('fall()',10);
81 }
82 //-->
83 </script>
84 </head>
85 <body onLoad="fall()">
86 </body>
87
