function NewWindow(mypage, myname, w, h) {
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars=no ,resizable=no'
	win = window.open(mypage, myname, winprops)
	if (parseInt(navigator.appVersion) >= 4) { 
		win.window.focus();
	}
}

function returnObjById2( id )
{
    if (document.getElementById)
        var returnVar = document.getElementById(id);
    else if (document.all)
        var returnVar = document.all[id];
    else if (document.layers)
        var returnVar = document.layers[id];
    return returnVar;
}

var kelintas_img = 2;
function pakeisti_img(k) {
	i2=0;
	for(i=1;i<=5;i++) {
		var object = returnObjById2('p'+i);
		if (object) {
		if (i != k) object.style.display = 'none'; else {
			object.style.display = 'block';
		}
		i2++;
		
		}
	}
	if (k >= i2) kelintas_img = 1; else kelintas_img++;

}