function changeBackground(pic)
{
	switch(pic){
		case 0:
			document.getElementById('Main').style.background = 'transparent url(images/tlo_ogolne_2.jpg) no-repeat';
			break;
		case 1:
			document.getElementById('Main').style.background = 'transparent url(images/czolowka-proj-1_2.jpg) no-repeat';
			break;
		case 2:
			document.getElementById('Main').style.background = 'transparent url(images/czolowka-proj-2_2.jpg) no-repeat';
			break;
		case 3:
			document.getElementById('Main').style.background = 'transparent url(images/czolowka-proj-3_2.jpg) no-repeat';
			break;
		case 4:
			document.getElementById('Main').style.background = 'transparent url(images/czolowka-proj-4_2.jpg) no-repeat';
			break;
		case 5:
			document.getElementById('Main').style.background = 'transparent url(images/czolowka-proj-5_2.jpg) no-repeat';
			break;
		case 6:
			document.getElementById('Main').style.background = 'transparent url(images/czolowka-proj-6_2.jpg) no-repeat';
			break;
		case 7:
			document.getElementById('Main').style.background = 'transparent url(images/czolowka-proj-7_2.jpg) no-repeat';
			break;
		case 8:
			document.getElementById('Main').style.background = 'transparent url(images/czolowka-proj-8_2.jpg) no-repeat';
			break;
		case 9:
			document.getElementById('Main').style.background = 'transparent url(images/czolowka-proj-9_2.jpg) no-repeat';
			break;
		case 10:
			document.getElementById('Main').style.background = 'transparent url(images/czolowka-proj-10_2.jpg) no-repeat';
			break;
		default:
			break;
	}
}