css不用图片美化按钮


            
 
 
.tb{width:100%;height:1px;overflow:hidden;background:rgb(250,100,0);margin:0 1px;} 
.lr{width:100%;height:20px;overflow:hidden;border-left:1px solid rgb(250,100,0);border-right:1px  
solid rgb(250,100,0);} 
.bg{width:100%;height:20px;overflow:hidden;} 
.button{position:relative;width:100%;height:20px;top:-20px;font- 
size:9pt;border:0;background:none;} 
 
 
 
 
 
 
 
 
 
 
function rgb(){ 
ID=arguments[0] 
oRGB=eval(arguments[1]) 
nRGB=eval(arguments[2]) 
var IMG="" 
for(i=20;i>0;i=i-2){ 
RGB="rgb("+(oRGB[0]-1)+","+(oRGB[1]-1)+","+(oRGB[2]-1)+")" 
IMG+="" 
           } 
for(i=20;i>0;i=i-2){ 
RGB="rgb("+(nRGB[0]-1)+","+(nRGB[1]-1)+","+(nRGB[2]-1)+")" 
IMG+="" 
           } 
eval(ID+".innerHTML=IMG") 
} 
rgb("bg",[255,180,20],[255,140,20]) 
button.onmouseover=function(){rgb("bg",[255,200,20],[255,160,20])} 
button.onmouseout=function(){rgb("bg",[255,180,20],[255,140,20])} 
 

  [Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]