function loadRegions(panstwo){
	pseudoAjaxGet('http://www.wakacje.pl/?page=ajaxRegions&encoding=UTF&id_panstwa='+panstwo);
}

function pseudoAjaxGet(url) {
    // Create new JS element
    var jsel = document.createElement('script');
    jsel.type = 'text/javascript';
    jsel.src = url;
    // Append JS element (therefore executing the 'AJAX' call)
    document.body.appendChild (jsel);
}