function preload(imgObj,imgSrc) {
	if (document.getElementById) {
		eval(imgObj+' = new Image()');
		eval(imgObj+'.src = "'+imgSrc+'"');
	}
}

function swap(imgName,imgObj) {
	if (document.getElementById) {
		document.getElementById(imgName).src = eval(imgObj+".src")
	}
}
preload('danish_over', '/prescreen/danish_over.gif');
preload('danish_out', '/prescreen/danish.gif');
preload('english_over', '/prescreen/english_over.gif');
preload('english_out', '/prescreen/english.gif');
preload('norwegian_over', '/prescreen/norwegian_over.gif');
preload('norwegian_out', '/prescreen/norwegian.gif');
preload('swedish_over', '/prescreen/swedish_over.gif');
preload('swedish_out', '/prescreen/swedish.gif');
preload('finnish_over', '/prescreen/finnish_over.gif');
preload('finnish_out', '/prescreen/finnish.gif');
preload('map_denmark', '/prescreen/map_denmark.gif');
preload('map_norway', '/prescreen/map_norway.gif');
preload('map_sweden', '/prescreen/map_sweden.gif');
preload('map_finland', '/prescreen/map_finland.gif');
preload('map_none', '/prescreen/map_none.gif');