if (document.images) {
	lbutton1up = new Image();
	lbutton1up.src = 'images/sidebar_left_btns_comp.png';
	lbutton1over = new Image();
	lbutton1over.src = 'images/sidebar_left_btns_comp_over.png';
	lbutton2up = new Image();
	lbutton2up.src = 'images/sidebar_left_btns_beauty.png';
	lbutton2over = new Image();
	lbutton2over.src = 'images/sidebar_left_btns_beauty_over.png';
	lbutton3up = new Image();
	lbutton3up.src = 'images/sidebar_left_btns_mind.png';
	lbutton3over = new Image();
	lbutton3over.src = 'images/sidebar_left_btns_mind_over.png';
	lbutton4up = new Image();
	lbutton4up.src = 'images/sidebar_left_btns_counselling.png';
	lbutton4over = new Image();
	lbutton4over.src = 'images/sidebar_left_btns_counselling_over.png';
	lbutton5up = new Image();
	lbutton5up.src = 'images/sidebar_left_btns_sports.png';
	lbutton5over = new Image();
	lbutton5over.src = 'images/sidebar_left_btns_sports_over.png';
	lbutton6up = new Image();
	lbutton6up.src = 'images/sidebar_left_btns_yoga.png';
	lbutton6over = new Image();
	lbutton6over.src = 'images/sidebar_left_btns_yoga_over.png';
	lbutton7up = new Image();
	lbutton7up.src = 'images/sidebar_left_btns_health.png';
	lbutton7over = new Image();
	lbutton7over.src = 'images/sidebar_left_btns_health_over.png';
	lbutton8up = new Image();
	lbutton8up.src = 'images/sidebar_left_btns_life.png';
	lbutton8over = new Image();
	lbutton8over.src = 'images/sidebar_left_btns_life_over.png';
	lbutton9up = new Image();
	lbutton9up.src = 'images/sidebar_left_btns_child.png';
	lbutton9over = new Image();
	lbutton9over.src = 'images/sidebar_left_btns_child_over.png';
	lbutton10up = new Image();
	lbutton10up.src = 'images/sidebar_left_btns_psychology.png';
	lbutton10over = new Image();
	lbutton10over.src = 'images/sidebar_left_btns_psychology_over.png';
	lbutton11up = new Image();
	lbutton11up.src = 'images/sidebar_left_btns_psychic.png';
	lbutton11over = new Image();
	lbutton11over.src = 'images/sidebar_left_btns_psychic_over.png';
	lbutton12up = new Image();
	lbutton12up.src = 'images/sidebar_left_btns_footcare.png';
	lbutton12over = new Image();
	lbutton12over.src = 'images/sidebar_left_btns_footcare_over.png';
	lbutton13up = new Image();
	lbutton13up.src = 'images/sidebar_left_btns_anatomy.png';
	lbutton13over = new Image();
	lbutton13over.src = 'images/sidebar_left_btns_anatomy_over.png';
	lbutton14up = new Image();
	lbutton14up.src = 'images/sidebar_left_btns_animal.png';
	lbutton14over = new Image();
	lbutton14over.src = 'images/sidebar_left_btns_animal_over.png';
	lbutton15up = new Image();
	lbutton15up.src = 'images/sidebar_left_btns_speech.png';
	lbutton15over = new Image();
	lbutton15over.src = 'images/sidebar_left_btns_speech_over.png';
	lbutton16up = new Image();
	lbutton16up.src = 'images/sidebar_left_btns_prac.png';
	lbutton16over = new Image();
	lbutton16over.src = 'images/sidebar_left_btns_prac_over.png';
	lbutton17up = new Image();
	lbutton17up.src = 'images/sidebar_left_btns_gen.png';
	lbutton17over = new Image();
	lbutton17over.src = 'images/sidebar_left_btns_gen_over.png';
}

function mouseup(imagename) {
	if (document.images) {
		document[imagename].src = eval(imagename+'up.src');
	}
}

function mouseover(imagename) {
	if (document.images) {
		document[imagename].src = eval(imagename+'over.src');
	}
}