/* vorladen der bilder fuer die navigation */

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		center_over =			newImage("./img/nav_center_over.gif");
		center_mov =			newImage("./img/center_mov.gif");
		trainer_over =			newImage("./img/nav_trainer_over.gif");
		trainer_mov =			newImage("./img/trainer_mov.gif");
		tool_over =				newImage("./img/nav_tool_over.gif");
		tools_mov =				newImage("./img/tools_mov.gif");
		publication_over =	newImage("./img/nav_pub_over.gif");
		publications_mov =	newImage("./img/publications_mov.gif");
		reference_over =		newImage("./img/nav_ref_over.gif");
		referenzen_mov =		newImage("./img/referenzen_mov.gif");
		next_over =				newImage("./img/nav_next_over.gif");
		impressum_over =		newImage("./img/impressum_over.gif");
		kontakt_over =			newImage("./img/kontakt_over.gif");
		preloadFlag = true;
		}
}