<script type="text/javascript">
        function addEvent(obj, type, fn) {
            if (obj.addEventListener) {
                obj.addEventListener(type, fn, false);
            } else if (obj.attachEvent) {
                obj["e"+type+fn] = fn;
                obj[type+fn] = function() {obj["e"+type+fn](window.event); }
                obj.attachEvent("on"+type, obj[type+fn]);
            }
        }
    
        function eventHander(e) {    
            if(document.searchform.txtSearch.value=='<?=$search_box_text?>') {
        alert('<?=$lang['59'];?>');
        return false;
        }
        if(document.searchform.txtSearch.value.length < 2) {
        alert('<?=$lang['60'];?>');
        return false;
        }
        }
        
        function startMagic() {
            addEvent(document.getElementById("sprawdz"), "click", eventHander);
        }
        
        addEvent(window, "load", startMagic);
    </script>