function doEmail() {
  var uid1 = "sses";
  var uid2 = "hia@eecs";
  var dom = ".berkeley.edu";
  
  var d=document;

  var url = "mailto:"+uid1+uid2+dom;

 d.write('<a href="'+url+'"><img src="images/email.jpg" border=0 height=22"></a>');

}