用javascript就可以，基本代码在下面，你自己照着改吧

html

head

meta http-equiv=Content-Type content=text/html;charset = gb2312 /

/head

body

script type=text/javascript

function changeA(){

document.getElementById(menuA).style.background='#f00';

document.getElementById(menuB).style.background='#fff';

}

function changeB(){

document.getElementById(menuB).style.background='#f00';

document.getElementById(menuA).style.background='#fff';

}

/script

input type=button οnclick=changeA() value=A/

input type=button οnclick=changeB() value=B/

div id=menuA style=width:300px;height:300px;

A

/div

div id=menuB style=width:300px;height:300px;

B

/div

/body

/html

取消

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