<!--


function mouseovermenu(overwhich)
{
   whichbutton = "earthmenuimages/"+overwhich.name+"_over.gif"
   
   overwhich.src = whichbutton;

  
}
function mouseoutmenu(overwhich)
{
   whichbutton = "earthmenuimages/"+overwhich.name+".gif"
   
   overwhich.src = whichbutton;

  
}
//-->