simplePreload(
'images/rollmap_eurasian_c_over.png', 
'images/rollmap_map_eurasian_c.png',
'images/rollmap_map_eurasian.png',
'images/rollmap_eurasian_over.png',
'images/rollmap_map_neutral.png',
'images/rollmap_neutral_over.png',
'images/rollmap_map_usallies.png',
'images/rollmap_usallies_over.png',
'images/rollmap_map_unitedstates.png',
'images/rollmap_unitedstates_over.png'
);

simplePreload(
'images/moon_center_L1.png',
'images/moon_center_L2.png',
'images/moon_center_L3.png',
'images/moon_center_L4.png',
'images/moon_center_L5.png',
'images/moon_center_earth.png',
'images/moon_center_moon.png'
);





function change(id, newClass)
{
identity=document.getElementById(id);
identity.className=newClass;
}

function change2(id, newClass)
{
identity2=document.getElementById(id);
identity2.className=newClass;
}
	
function change3(id, newClass)
{
identity3=document.getElementById(id);
identity3.className=newClass;
}
	
function change4(id, newClass)
{
identity4=document.getElementById(id);
identity4.className=newClass;
}
	
function change5(id, newClass)
{
identity5=document.getElementById(id);
identity5.className=newClass;
}
	
function change6(id, newClass)
{
identity6=document.getElementById(id);
identity6.className=newClass;
}