.balloonstyle{
position:absolute;
top: -500px;
left: 0;
padding: 10px;
visibility: hidden;
border: 1px solid black;
font: normal 10px Verdana;
line-height: 18px;
z-index: 100;
background-color: white;
width: 500px;
filter: progid:DXImageTransform.Microsoft.Shadow(color=black,direction=135,Strength=5);
}

#arrowhead{
z-index: 99;
position:absolute;
top: -500px;
left: 0;
visibility: hidden;
}