var last = 0;
var projects = new Array('cztorrent','ebony','mstepankova');
var selected;

for (i=0; i<projects.length; i++) {
	var img = 'image'+i;
	img = new Image();
	img.src = 'http://cztorrent.eu/images/prest_'+projects[i]+'.png';
}

function click(move) {
	document.getElementById("show_"+projects[last]).style.display = 'none';
	document.getElementById("screen_"+projects[last]).className = 'screen';
	if (move == 'right') {
		selected = last+1;
		if ( selected > (projects.length-1)) { selected = 0;}
	}
	if (move == 'left') {
		selected = last-1;
		if ( selected < 0) { selected = projects.length-1;}
	}
	if (projects[move-1]) {
		selected = move-1;
	}
	document.getElementById("show_"+projects[selected]).style.display = 'block';
	document.getElementById("screen_"+projects[selected]).className = 'screen screen_act';
	last = selected;
	return false;
}