回复讨论(解决方案)

要写js 动态改变class 然后再给class写样式~

CSS:
.MM {
width: 182px;
margin: 0px;
padding: 0px;
left: 0px;
top: 0px;
right: 0px;
bottom: 0px;
clip: rect(0px,0px,0px,0px);
}
.MM a:link {
font-family: Arial, Helvetica, sans-serif;
font-size: 12px;
line-height: 26px;
color: #333333;
background-image: url(images/menu_bg1.gif);
background-repeat: no-repeat;
height: 26px;
width: 182px;
display: block;
text-align: center;
margin: 0px;
padding: 0px;
overflow: hidden;
text-decoration: none;
}
.MM a:visited {
font-family: Arial, Helvetica, sans-serif;
font-size: 12px;
line-height: 26px;
color: #333333;
background-image: url(images/menu_bg1.gif);
background-repeat: no-repeat;
display: block;
text-align: center;
margin: 0px;
padding: 0px;
height: 26px;
width: 182px;
text-decoration: none;
}

.MM a:hover {
font-family: Arial, Helvetica, sans-serif;
font-size: 12px;
line-height: 26px;
font-weight: bold;
color: #006600;
background-image: url(images/menu_bg2.gif);
background-repeat: no-repeat;
text-align: center;
display: block;
margin: 0px;
padding: 0px;
height: 26px;
width: 182px;
text-decoration: none;
}

.MM a:active {
font-family: Arial, Helvetica, sans-serif;
font-size: 12px;
line-height: 26px;
color: #333333;
background-image: url(images/menu_bg2.gif);
background-repeat: no-repeat;
height: 26px;
width: 182px;
display: block;
text-align: center;
margin: 0px;
padding: 0px;
overflow: hidden;
text-decoration: none;
}

页面：

页面

把上面的#menu 换成.MM

改了，试了不行。

$(function () {
var basic = $("#basic");
var myframe = $("#myframe");
var column = $("#column");
var columnContent = $("#columnContent");
var comment = $("#comment");
var contact = $("#contact");
var link = $("#link");
basic.click(function () {
myframe.attr("src", "http://www.baidu.com")
});
column.click(function () {
myframe.attr("src", "http://www.baidu.com")
});
columnContent.click(function () {
myframe.attr("src", "http://www.g.cn")
});
comment.click(function () {
myframe.attr("src", "http://www.baidu.com")
});
contact.click(function () {
myframe.attr("src", "http://www.baidu.com")
});
link.click(function () {
myframe.attr("src", "http://www.baidu.com")
});


var me = this, current;
$(".MM li").each(function () {
$(this).click(function () {
$(".MM li").removeClass("current");
if (current) {
$(current).removeClass("current");
}
$(this).addClass("current");
current = this;
});
});
})