function toggleLayer(showLayer,hide1,hide2,hide3,hide4,hide5,hide6,hide7,hide8)
{
if (document.getElementById)
{
// this is the way the standards work
var style2 = document.getElementById(showLayer).style;
style2.display = "block";
var style3 = document.getElementById(hide1).style;
style3.display = "none";
var style4 = document.getElementById(hide2).style;
style4.display = "none";
var style5 = document.getElementById(hide3).style;
style5.display = "none";
var style6 = document.getElementById(hide4).style;
style6.display = "none";
var style7 = document.getElementById(hide5).style;
style7.display = "none";
var style8 = document.getElementById(hide6).style;
style8.display = "none";
var style9 = document.getElementById(hide7).style;
style9.display = "none";
var style10 = document.getElementById(hide8).style;
style10.display = "none";
}
else if (document.all)
{
// this is the way old msie versions work
var style2 = document.all[whichLayer].style;
style2.display = style2.display? "":"block";
}
else if (document.layers)
{
// this is the way nn4 works
var style2 = document.layers[whichLayer].style;
style2.display = style2.display? "":"block";
}
}