function preloadMoreImages() {
if (document.images)
	{
	var btn_sitecredits_roll = new Image
		btn_sitecredits_roll.src = "images/btn_sitecredits_over.gif"
	var btn_introduction_roll = new Image
		btn_introduction_roll.src = "images/btn_introduction_over.gif"
	var btn_archethics_roll = new Image
		btn_archethics_roll.src = "images/btn_archethics_over.gif"
	var btn_sharing_roll = new Image
		btn_sharing_roll.src = "images/btn_sharing_over.gif"
	var btn_faunalresources_roll = new Image
		btn_faunalresources_roll.src = "images/btn_faunalresources_over.gif"
	var btn_gathering_roll = new Image
		btn_gathering_roll.src = "images/btn_gathering_over.gif"
	var btn_farming_roll = new Image
		btn_farming_roll.src = "images/btn_farming_over.gif"
	var btn_seasonality_roll = new Image
		btn_seasonality_roll.src = "images/btn_seasonality_over.gif"
	var btn_villagelife_roll = new Image
		btn_villagelife_roll.src = "images/btn_villagelife_over.gif"
	var btn_trade_roll = new Image
		btn_trade_roll.src = "images/btn_trade_over.gif"
	var btn_woodhide_roll = new Image
		btn_woodhide_roll.src = "images/btn_woodhide_over.gif"
	var btn_artistic_roll = new Image
		btn_artistic_roll.src = "images/btn_artistic_over.gif"
	var btn_recreation_roll = new Image
		btn_recreation_roll.src = "images/btn_recreation_over.gif"
	}
}