messages[0] = new Array("admin/produkty/zdjecie.jpg","opis2","#FFFFFF");
messages[1] = new Array("admin/produkty/zdjecie.jpg","opis2","#FFFFFF");
messages[2] = new Array("admin/produkty/zdjecie.jpg","opis2","#FFFFFF");

<img src='admin/produkty/images.ipg' width='127' height='124' border='0' onmouseover='doTooltip(event,0)' onmousedown='doTooltip(event,0)' onclick='doTooltip(event,0)' onmouseout='hideTip()'>

<script type="text/javascript">

var dom = (document.getElementById) ? true : false;
var ns5 = (!document.all && dom || window.opera) ? true: false;
var ie5 = ((navigator.userAgent.indexOf("MSIE")>-1) && dom) ? true : false;
var ie4 = (document.all && !dom) ? true : false;
var nodyn = (!ns5 && !ie4 && !ie5 && !dom) ? true : false;

var origWidth, origHeight;

if (nodyn) { event = "nope" }

var tipFollowMouse= true;    
var tipWidth= "";
var offX= 20;
var offY= 12;
var tipFontFamily= "Verdana";
var tipFontSize= "12px";
var tipFontColor= "gray";
var tipBgColor= "silver";
var tipBorderColor= "silver";
var tipBorderWidth= 1;
var tipBorderStyle= "ridge";
var tipPadding= 0;

if (document.images) {
    var theImgs = new Array();
    for (var i=0; i<messages.length; i++) {
      theImgs[i] = new Image();
        theImgs[i].src = messages[i][0];
  }
}


var startStr = '<table border="0"><tr><td align="center">';
var midStr = '</td></tr><tr><td valign="top"><img src="';
var endStr = '" border="0" width="450" height="450"></td></tr></table>';


var tooltip, tipcss;
function initTip() {
    if (nodyn) return;
    tooltip = (ie4)? document.all['tipDiv']: (ie5||ns5)? document.getElementById('tipDiv'): null;
    tipcss = tooltip.style;
    if (ie4||ie5||ns5) {
        tipcss.width = tipWidth+"px";
        tipcss.fontFamily = tipFontFamily;
        tipcss.fontSize = tipFontSize;
        tipcss.color = tipFontColor;
        tipcss.backgroundColor = tipBgColor;
        tipcss.borderColor = tipBorderColor;
        tipcss.borderWidth = tipBorderWidth+"px";
        tipcss.padding = tipPadding+"px";
        tipcss.borderStyle = tipBorderStyle;
    }
    if (tooltip&&tipFollowMouse) {
        document.onmousemove = trackMouse;
    }
}

window.onload = initTip;


var t1,t2;
var tipOn = false;
function doTooltip(evt,num) {
    if (!tooltip) return;
    if (t1) clearTimeout(t1);    if (t2) clearTimeout(t2);
    tipOn = true;
    if (messages[num][2])    var curBgColor = messages[num][2];
    else curBgColor = tipBgColor;
    if (messages[num][3])    var curFontColor = messages[num][3];
    else curFontColor = tipFontColor;
    if (ie4||ie5||ns5) {
        var tip = startStr + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + messages[num][1] + '</span>' + midStr + messages[num][0] + endStr;
        tipcss.backgroundColor = curBgColor;
         tooltip.innerHTML = tip;
    }
    if (!tipFollowMouse) positionTip(evt);
    else t1=setTimeout("tipcss.visibility='visible'",100);
}

var mouseX, mouseY;
function trackMouse(evt) {
    standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body
    mouseX = (ns5)? evt.pageX: window.event.clientX + standardbody.scrollLeft;
    mouseY = (ns5)? evt.pageY: window.event.clientY + standardbody.scrollTop;
    if (tipOn) positionTip(evt);
}


function positionTip(evt) {
    if (!tipFollowMouse) {
        standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body
        mouseX = (ns5)? evt.pageX: window.event.clientX + standardbody.scrollLeft;
        mouseY = (ns5)? evt.pageY: window.event.clientY + standardbody.scrollTop;
    }
    var tpWd = (ie4||ie5)? tooltip.clientWidth: tooltip.offsetWidth;
    var tpHt = (ie4||ie5)? tooltip.clientHeight: tooltip.offsetHeight;
    var winWd = (ns5)? window.innerWidth-20+window.pageXOffset: standardbody.clientWidth+standardbody.scrollLeft;
    var winHt = (ns5)? window.innerHeight-20+window.pageYOffset: standardbody.clientHeight+standardbody.scrollTop;
    if ((mouseX+offX+tpWd)>winWd)
        tipcss.left = mouseX-(tpWd+offX)+"px";
    else tipcss.left = mouseX+offX+"px";
    if ((mouseY+offY+tpHt)>winHt)
        tipcss.top = winHt-(tpHt+offY)+"px";
    else tipcss.top = mouseY+offY+"px";
    if (!tipFollowMouse) t1=setTimeout("tipcss.visibility='visible'",100);
}

function hideTip() {
    if (!tooltip) return;
    t2=setTimeout("tipcss.visibility='hidden'",100);
    tipOn = false;
}

document.write('<div id="tipDiv" style="position:absolute; visibility:hidden; z-index:100"></div>')

</script>