Google地图左边显示行政区域那儿

Question

http://ditu.google.com/
有点“+”符号，一点，地名就展开了
“+”也变成了“-”这个是怎么现实的？

Answer 1

<META NAME="Generator" CONTENT="textEditor">
<META NAME="Author" CONTENT="[email protected],碧海情天,赵亮">
<meta http-equiv="blog" content="blog.csdn.net/theforever">
<meta http-equiv="email" content="[email protected]">
<span id='theforever'>+</span>
<div id='数据区'>
1<br />
2<br />
</div>
<script type="text/javascript">
window.onload=function(){document.getElementById('数据区').style.display="none";document.getElementById('theforever').style.cursor="pointer";document.getElementById('theforever').onclick=theforever;}
function theforever(){
if(document.getElementById('theforever').innerText=="+"){
document.getElementById('theforever').innerText="-";
document.getElementById('数据区').style.display="";
}
else {
document.getElementById('theforever').innerText="+";
document.getElementById('数据区').style.display="none";
}
}
</script>