var okx = -1000;
var oky = -1000;
var okienko = null;
var akt_tresc = '';
var offsetY = 20;

var nav_ok = false;
var nav_ie = false;
var nav_brak = false;

if (document.all) {
	nav_ie = true;
} else if (document.getElementById || (navigator.userAgent.indexOf('Konqueror') > 0)) {
	nav_ok = true;
} else {
	nav_brak = true;
}

document.onmousemove = mouseMove;

function ustaw_okienko() {
	okienko.style.left = okx + 10 + 'px';
	okienko.style.top = oky + offsetY + 'px';
	//okienko.style.width = okienko.style.width + 200;
}

function mouseMove(e) {
    if (!e) {
        e = window.event;
    }

    okx = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft; 
    oky = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;

	if (okienko && (okienko.style.visibility == 'visible')) {
        ustaw_okienko();
	}
}

function wyswietlOkienko(id, content, Y) {

	offsetY = Y;
	
    if (nav_brak) {
        return;
    }

	if ((okienko == null) || (akt_tresc != content)) {
		akt_tresc = content;
		okienko = document.createElement('div');
    	okienko.id = id;
        okienko.className = 'okienko_js';
		//ustaw_okienko();
	    okienko.innerHTML = content;

    	document.body.appendChild(okienko);
	}
	ustaw_okienko();
    
  	okienko.style.visibility = 'visible';
}

function schowajOkienko() {
    if (nav_brak) {
        return;
    }

	if (okienko != null) {
    	okienko.style.visibility = 'hidden';
    }
}