<!--
function setFocus(i)
{
 selectLayer(i);
}
function selectLayer(i)
{
 switch(i)
 {
 case 1:
document.getElementById("a").style.display="block";
document.getElementById("b").style.display="none";
document.getElementById("c").style.display="none";
document.getElementById("d").style.display="none";
document.getElementById("e").style.display="none";

 break;
 case 2:
document.getElementById("a").style.display="none";
document.getElementById("b").style.display="block";
document.getElementById("c").style.display="none";
document.getElementById("d").style.display="none";
document.getElementById("e").style.display="none";

 break;
 case 3:
document.getElementById("a").style.display="none";
document.getElementById("b").style.display="none";
document.getElementById("c").style.display="block";
document.getElementById("d").style.display="none";
document.getElementById("e").style.display="none";

 break;
 case 4:
document.getElementById("a").style.display="none";
document.getElementById("b").style.display="none";
document.getElementById("c").style.display="none";
document.getElementById("d").style.display="block";
document.getElementById("e").style.display="none";

 break;
 case 5:
document.getElementById("a").style.display="none";
document.getElementById("b").style.display="none";
document.getElementById("c").style.display="none";
document.getElementById("d").style.display="none";
document.getElementById("e").style.display="block";

 break;
 }
}

//-->