function scroll(show,hide)
	{
		hideitem = document.getElementById(hide);
		hideitem.style.display = "none";
		showitem = document.getElementById(show);
		showitem.style.display = "block";	
	}	
	function changePicture(pic, dir)
	{
		newpic = document.getElementById(pic);
		bigpic = document.getElementById("fullsizepic");
		
		index1 = newpic.src.indexOf(dir + '/') + (dir.length) + 1;
		part1 = newpic.src.slice(0, index1);
		
		index1 = newpic.src.indexOf(dir + '/thm_') + (dir.length) +5;
		index2 = newpic.src.length;
		part2 = newpic.src.slice(index1, index2);
		bigpic.src = part1 + part2;
	}