function showimg(n) {
	switch(n) {
		case '1':   document.getElementById('main_img_block').style.backgroundImage = 'url(images/flowers2.jpg)'; 
					//document.getElementById('flowers_txt').style.display = 'block';
					//document.getElementById('baskets_txt').style.display = 'none';
					//document.getElementById('gifts_txt').style.display = 'none';
					break;
		case '2': 	document.getElementById('main_img_block').style.backgroundImage = 'url(images/gift_basket2.jpg)'; 
					//document.getElementById('flowers_txt').style.display = 'none';
					//document.getElementById('baskets_txt').style.display = 'block';
					//document.getElementById('gifts_txt').style.display = 'none';
					break;
		case '3': 	document.getElementById('main_img_block').style.backgroundImage = 'url(images/gifts2.jpg)'; 
					//document.getElementById('flowers_txt').style.display = 'none';
					//document.getElementById('baskets_txt').style.display = 'none';
					//document.getElementById('gifts_txt').style.display = 'block';
					break;
	}
}