<!-- 要完成此效果把如下代码加入到<body>区域中 -->
<script language="javascript">
var line=new Array();
var w=35;;;// 一条边框的小格的个数（所以是个正方形啦）
var left=280// 这个是边框在页面中的位置的左上角的X坐标
var top=10;// 自然就是纵坐啦
var width=4// 边框中一小格的象素宽
var height=3// 边框的高度，设为1的话就是一条细线了
line[0]="ff"+Number(25).toString(16)+Number(25).toString(16);
line[1]="ff"+Number(50).toString(16)+Number(50).toString(16);
line[2]="ff"+Number(75).toString(16)+Number(75).toString(16);
line[3]="ff"+Number(100).toString(16)+Number(100).toString(16);
line[4]="ff"+Number(125).toString(16)+Number(125).toString(16);
line[5]="ff"+Number(150).toString(16)+Number(150).toString(16);
line[6]="ff"+Number(175).toString(16)+Number(175).toString(16);
line[7]="ff"+Number(200).toString(16)+Number(200).toString(16);
line[8]="ff"+Number(225).toString(16)+Number(225).toString(16);
line[9]="ff"+Number(225).toString(16)+Number(225).toString(16);
line[10]="ff"+Number(225).toString(16)+Number(225).toString(16);
line[11]="ff"+Number(225).toString(16)+Number(225).toString(16);
line[12]="ff"+Number(200).toString(16)+Number(200).toString(16);
line[13]="ff"+Number(175).toString(16)+Number(175).toString(16);
line[14]="ff"+Number(150).toString(16)+Number(150).toString(16);
line[15]="ff"+Number(125).toString(16)+Number(125).toString(16);
line[16]="ff"+Number(100).toString(16)+Number(100).toString(16);
line[17]="ff"+Number(75).toString(16)+Number(75).toString(16);
line[18]="ff"+Number(50).toString(16)+Number(50).toString(16);
line[19]="ff"+Number(25).toString(16)+Number(25).toString(16);
function writes(num)
{
var temp;
var s;
var tl,tt;
var tw,th;
temp=num+1;
if(num==0)
{
tl = left;
tt = top;
tw = w*width;
th = height;
s="<table style='position: absolute; left: "+tl+"px; top: "+tt+"px; width: "+tw+"px; height: "+th+"px;' cellspacing='0' cellpadding='0'><tr>";
for(r=0;r<w;r++)
{
temp=r+w*num;
s+="<td id=tab"+temp+" bgcolor=red></td>";
}
s+="</tr></table>";
}
if(num==1)
{
tl = left+w*width;
tt = top;
tw = height;
th = w*width;
s="<table style='position: absolute; left: "+tl+"px; top: "+tt+"px; width: "+tw+"px; height: "+th+"px;' cellspacing='0' cellpadding='0'>";
for(r=0;r<w;r++)
{
temp=r+w*num;
s+="<tr><td id=tab"+temp+" bgcolor=red></td></tr>";
}
s+="</table>";
}
if(num==2)
{
tl = left+height;
tt = top+w*width;
tw = w*width;
th = height;
s="<table style='position: absolute; left: "+tl+"px; top: "+tt+"px; width: "+tw+"px; height: "+th+"px;' cellspacing='0' cellpadding='0'><tr>";
for(r=w;r>0;r--)
{
temp=r-1+w*num;
s+="<td id=tab"+temp+" bgcolor=red></td>";
}
s+="</tr></table>";
}
if(num==3)
{
tl = left;
tt = top+height;
tw = height;
th = w*width;
s="<table style='position: absolute; left: "+tl+"px; top: "+tt+"px; width: "+tw+"px; height: "+th+"px;' cellspacing='0' cellpadding='0'>";
for(r=w;r>0;r--)
{
temp=r-1+w*num;
s+="<tr><td id=tab"+temp+" bgcolor=red></td></tr>";
}
s+="</table>";
}
return s;
}
function count()
{
var i;
var temp;
var total;
total = w*4;
for(i=0; i<line.length; i++)
{
temp=pos+i-line.length/2;
temp=temp<0?(total+temp):temp;
temp=temp>(total-1)?(temp-total):temp;
document.all["tab"+temp].style.backgroundColor=line[line.length-i];
}
pos=(pos+1)>total?0:(pos+1);
}
for(i=0;i<=3;i++)
{
document.write(writes(i));
}
var pos=0;
setInterval("count()", 1);
</script>
