if (document.images) {
	preload_image_object = new Image();
	image_url = new Array();
	image_url[0] = "img/SumEu_hover.png";
	image_url[1] = "img/SumFok_hover.png";
	image_url[2] = "img/SumSup_hover.png";
	image_url[3] = "img/menu_hem_hover.png";
	image_url[4] = "img/menu_aktuellt_hover.png";
	image_url[5] = "img/menu_kontakt_hover.png";
	image_url[6] = "img/menu_om_systemet_hover.png";
	
	var i = 0;
	for(i=0; i<=3; i++)
	preload_image_object.src = image_url[i];
}