javascript 写的一个简单的timer

先看看效果吧。

代码很简单，只是使用了javascript的setTimeout()函数。
用到的html"

代码如下：

<table> 
<td bgcolor="EE8F8F" height="45"> 
<img src="dg8.gif" src="dg8.gif" name="hr1"><img 
src="dg8.gif" name="hr2"><img 
src="dgc.gif" name="c"><img 
src="dg8.gif" name="mn1"><img 
src="dg8.gif" name="mn2"><img 
src="dgc.gif" name="c"><img 
src="dg8.gif" name="se1"><img 
src="dg8.gif" name="se2"> 
</td></table>

代码如下：

<script language="javascript"><!-- 
dg0 = new Image();dg0.src = "dg0.gif"; 
dg1 = new Image();dg1.src = "dg1.gif"; 
dg2 = new Image();dg2.src = "dg2.gif"; 
dg3 = new Image();dg3.src = "dg3.gif"; 
dg4 = new Image();dg4.src = "dg4.gif"; 
dg5 = new Image();dg5.src = "dg5.gif"; 
dg6 = new Image();dg6.src = "dg6.gif"; 
dg7 = new Image();dg7.src = "dg7.gif"; 
dg8 = new Image();dg8.src = "dg8.gif"; 
dg9 = new Image();dg9.src = "dg9.gif"; 

dgc = new Image();dgc.src = "dgc.gif"; 
se_d=0; 
se_g=0; 
mn_g=0; 
mn_d=0; 
hr_g=0; 
hr_d=0; 
function dotimer(){ 
theTime=setTimeout('dotimer()',1000); 

//���ﲻ��ʹ��60����4����hr,mn��se 
//������ʹ�øߣ���λ4��ʾ 

document.hr1.src = 'dg'+hr_g+'.gif'; 
document.hr2.src = 'dg'+hr_d+'.gif'; 
document.mn1.src = 'dg'+mn_g+'.gif'; 
document.mn2.src = 'dg'+mn_d+'.gif'; 
document.se1.src = 'dg'+se_g+'.gif'; 
document.se2.src = 'dg'+se_d+'.gif'; 
if(se_d < 9) 
{ 
se_d=se_d +1;} 
else 
{ 
se_d=0; 
se_g=se_g+1; 
} 
if(se_g > 5) 
{se_g = 0; 
mn_d=mn_d +1 ; 
if(mn_d > 9) 
{mn_d =0; 
mn_g = mn_g+1;} 
if(mn_g >5) 
{ 
mn_g=0; 
hr_d=hr_d+1; 
} 
if(hr_d >9) 
{ 
hr_d=0; 
hr_g=hr_g+1; 
} 
} 
} 

dotimer(); 
//end 
// --></script>