<script   language="jscript"> 
function show()
{
//alert("aaa");
map1.style.display="block";
map1.style.visibility='visible';
map1.style.position='absolute';
...

http://skype.tom.com/help/skypebuttons/wizard.html Skype 的在线状态生成网站
http://imis.qq.com/webpresence/code.shtml  QQ的...

<script language="JavaScript">
var flag=false;
function DrawImage(ImgD){
 var image=new Image();
 image.src=ImgD.src;
 if(image.width>0 && image.height>0){
...