function preloader() {

	var i = 0;

	imageObj = new Image();

	images = new Array();
	images[0]="http://www.schtifti.ch/tests/menu/images/button1.gif"
	images[1]="http://www.schtifti.ch/tests/menu/images/button1-click.gif"
	images[2]="http://www.schtifti.ch/tests/menu/images/underline.gif"
	images[3]="http://www.schtifti.ch/tests/menu/images/underline-both-sides.gif"

	for(i=0; i<=3; i++) {
		imageObj.src=images[i];
	}

} // end preloader()