<li><a href='http://xxx.pl/obrazek.png' class='preview'>$zmienna</li></a>

if($rek["p_player"]!='0'){$output .= "<td style='white-space:nowrap; text-align:center'>
                    <li><a href='http://xxx/image.png' class='preview'>$zmienna</li></a>

        </td>";}

pre{
    display:block;
    font:100% "Courier New", Courier, monospace;
    padding:10px;
    border:1px solid #bae2f0;
    background:#e3f4f9;    
    margin:.5em 0;
    overflow:auto;
    width:800px;
}

img{border:none;}
ul,li{
    margin:0;
    padding:0;
}
li{
    list-style:none;
    float:left;
    display:inline;
    margin-right:10px;
}



/*  */

#preview{
    position:absolute;
    border:1px solid #ccc;
    background:#333;
    padding:5px;
    display:none;
    color:#fff;
    }

/*
* Image preview script
* powered by jQuery (http://www.jquery.com)
*
* written by Alen Grakalic (http://cssglobe.com)
*
* for more info visit http://cssglobe.com/post/1695/easiest-tooltip-and-image-preview-using-jquery
*
*/

this.imagePreview = function(){    
    /* CONFIG */
        
        xOffset = 10;
        yOffset = 30;
        
        // these 2 variable determine popup's distance from the cursor
        // you might want to adjust to get the right result
        
    /* END CONFIG */
    $("a.preview").hover(function(e){
        this.t = this.title;
        this.title = "";    
        var c = (this.t != "") ? "<br/>" + this.t : "";
        $("body").append("<p id='preview'><img src='"+ this.href +"' alt='Image preview' />"+ c +"</p>");                                
        $("#preview")
            .css("top",(e.pageY - xOffset) + "px")
            .css("left",(e.pageX + yOffset) + "px")
            .fadeIn("fast");                        
    },
    function(){
        this.title = this.t;    
        $("#preview").remove();
    });    
    $("a.preview").mousemove(function(e){
        $("#preview")
            .css("top",(e.pageY - xOffset) + "px")
            .css("left",(e.pageX + yOffset) + "px");
    });            
};


// starting the script on page load
$(document).ready(function(){
    imagePreview();
});

$output .= "<script src='main.js' type='text/javascript'></script>";

if($rek["p_status"]!='0'){$output .= "<td style='white-space:nowrap; text-align:center' data-tooltip='nazwa'>
          tekst
          </td>";}