// JavaScript Document





function f1(num){

	switch (num) {
		case 1: 
			one();
			break;
		case 2: 
			two();
			break;
		case 3: 
			three();
			break;
		case 4: 
			four();
			break;
		default:
		   
		   
	}
	
	num_glob = num;
	

}

function  f_listanie_nazad(){
	num_glob--;
	if(num_glob > 0){
		f1(num_glob);
	}
}


function  f_listanie_vpered(){
	num_glob++;
	if(num_glob < 5){
		f1(num_glob);
	}
}


function one()
{
	document.getElementById('a1').href = "images/gallery/1.jpg";
	document.getElementById('a2').href = "images/gallery/2.jpg";
	document.getElementById('a3').href = "images/gallery/3.jpg";
	document.getElementById('a4').href = "images/gallery/4.jpg";

	document.getElementById('im1').src = "images/gallery/1.jpg";
	document.getElementById('im2').src = "images/gallery/2.jpg";
	document.getElementById('im3').src = "images/gallery/3.jpg";
	document.getElementById('im4').src = "images/gallery/4.jpg";
	
}
function two()
{
	document.getElementById('a1').href = "images/gallery/2.jpg";
	document.getElementById('a2').href = "images/gallery/3.jpg";
	document.getElementById('a3').href = "images/gallery/4.jpg";
	document.getElementById('a4').href = "images/gallery/5.jpg";

	document.getElementById('im1').src = "images/gallery/2.jpg";
	document.getElementById('im2').src = "images/gallery/3.jpg";
	document.getElementById('im3').src = "images/gallery/4.jpg";
	document.getElementById('im4').src = "images/gallery/5.jpg";

}